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Monday, 3 April 2023

ChatGPT - Summary paper Differences between OTT & traditional PayTV

Today's experiment tests ChatGPT's ability to summarize my content from past blog posts, starting with my paper on challenges of building an OTT video streaming platforms when compared to traditional satellite broadcast TV systems, which I wrote to target non-technical, non-digital-native senior executives who run PayTV companies who may not appreciate the engineering challenges.

My original paper had a word count of: 7975
ChatGPT summary generated: 1489
I had to feed chatGPT one section at a time.
I wasn't pleased with the summary of sections 2-4 because at first I fed sections 1-4 to the machine, so it lost a fair chunk of detail. But the rest isn't so bad.
Overall rating, one first parse without retries - 3.5 stars (out of 5).

So here's another example of work productivity boosting: Summarise technical content in a way to present a summary to non-technical CxOs to help them grasp the essence of their engineering leader's thesis. Quite often, these two groups misunderstand each other, and out of fear or misplaced respect, or fear of embarrassment - the nontechnical executives grant the technology leader the benefit of doubt to do the right thing, the right way...sometimes, it can go awry where the nontechnical executives place unreasonable demands, and use authority to get the point across, because their mental models need calibrating for the new world, yet they're unable to see it. So you need technical leaders like me, to have backbone but also try different techniques to get the point across - like write a white paper. But my challenge has always been that even my white papers are just too damn long - and because I wrote almost all my papers in my spare time, I didn't invest time in efficiently summarising to the essence. I'm hoping ChatGPT will help me rework all my rather lengthy blogposts into simpler one pages.

Abstract (generated)

The author, a 20-year veteran in Digital TV software engineering, has witnessed the industry's evolution from set-top-box applications to online streaming. While traditional DTH broadcast systems offer simpler scalability and control, OTT platforms provide more flexible disaster recovery and redundancy options. However, OTT operators face challenges in managing customer experience due to factors beyond their control, such as network quality and relationships with telecom providers. The author suggests that PayTV operators should embrace modern, open technology stacks and focus on reducing operating costs instead of investing in outdated, proprietary systems. 


Core themes summarized (generated):

  1. Evolution of Digital TV software engineering

  2. DTH broadcast systems' scalability and control

  3. OTT platforms' flexibility in disaster recovery and redundancy

  4. Challenges faced by OTT operators in managing customer experience

  5. Importance of relationships with telecom providers for OTT operators

  6. Suggestion for PayTV operators to embrace modern, open technology stacks

  7. Focus on reducing operating costs instead of investing in outdated, proprietary systems


Below is the summary generated by ChatGPT4, the author fed chunks of text per section from the original paper since the machine couldn’t process the original text in one go:


The blog post discusses the differences and challenges between traditional broadcast DTH/SetTopBox (STB) systems and OTT (Over-the-Top) streaming platforms. OTT platforms have grown in popularity due to increasing competition from SVOD players like Netflix and Amazon. However, PayTV operators often struggle to adapt to the OTT landscape as they try to apply traditional broadcast thinking to it.


Key takeaways from the post:


  1. Traditional broadcast and OTT platforms are not directly comparable, and having experience in one does not necessarily translate to expertise in the other.

  2. PayTV operators used to enjoy a high level of end-to-end control in their ecosystem, but this is not possible in the OTT world, where the internet is beyond their control.

  3. The OTT value chain is more complex than the broadcast value chain, with more backend, frontend, and device software components.

  4. OTT platforms face high levels of device and platform fragmentation compared to traditional PayTV systems.

  5. The internet was not designed for TV consumption and is a more chaotic and unpredictable environment than traditional broadcast TV.

  6. OTT engineering teams face different challenges compared to traditional broadcast and set-top box engineering teams.

  7. Convergence of DTH and OTT engineering teams in PayTV operators requires careful planning to avoid a "clash of worlds."

  8. STB software systems offer more security control and protection than their OTT counterparts.

  9. OTT platforms face unique peak event and load challenges compared to broadcast DTH STB systems.

  10. Redundancy, fast rollbacks, failover, and disaster recovery are easier to achieve in OTT platforms than in broadcast DTH/STB systems.


The post suggests that traditional PayTV executives should adapt their mindset and learn to appreciate the unique engineering challenges of the OTT world.


The rise of browser-based streaming has significantly impacted traditional PayTV, as it is more dynamic, agile, and requires new engineering and management approaches. While satellite PayTV operators have end-to-end control over the broadcast platform and can ensure high reliability, OTT platform operators face more challenges due to the complexity and variability of the internet.


OTT customers need a strong and consistent internet connection, which isn't always guaranteed. ISPs may struggle to maintain service levels as demand grows, while wireless networks face constraints with their physical infrastructure. OTT operators often partner with CDN providers to improve customer experience but must consider factors like risk, funding, and engineering skills.


In summary, traditional satellite PayTV offers more end-to-end control and reliability, while OTT platforms require stronger partnerships, tolerance for risk, and adaptation to a rapidly evolving digital landscape.


In the STB (set-top box) application development world, PayTV operators have control over the client-side software ecosystem, ensuring consistency and ownership of the software stack. Middleware SDK platforms allow for EPG (Electronic Program Guide) applications to be built once and run on various hardware platforms with minimal customization. PayTV operators have full control over software upgrades and platform roadmaps.


In contrast, OTT (Over-the-Top) applications face fragmentation, as they must contend with multiple devices and platforms beyond the operator's control. This includes web browsers, various platform operating systems, mobile and tablet platforms, and Smart TVs. Additionally, OTT providers must deal with multiple video formats, DRM (Digital Rights Management) systems, and a lack of control over updates and platform roadmaps. As a result, OTT development teams need to specialize in multiple platforms, manage multiple app versions, and be flexible in handling emergency changes.


Some PayTV operators consider building their own OTT devices to regain control, but this introduces new challenges and may slow down the development process.


In the traditional STB (Set Top Box) and DTH (Direct-to-Home) broadcast world, security is robust due to hardware-level protection, custom hardware, and smart card technology. However, OTT (Over-the-Top) applications face greater security threats due to their software-based ecosystem. Some of the main security challenges in OTT compared to DTH broadcast include:


  1. Credential sharing: Users can easily share their login credentials with friends and family, leading to revenue loss for OTT operators.

  2. Compromising accounts: OTT platforms are more susceptible to brute force attacks, which require strong passwords and security measures.

  3. Piracy of OTT streams: The open nature of online systems makes it easier to exploit and re-engineer web apps, exposing them to piracy.

  4. Denial of Service attacks: OTT apps are more vulnerable to DDoS attacks compared to DTH broadcast systems, requiring robust software and network protection.

  5. Region-blocking: In the OTT world, VPNs and other tools can bypass country restrictions, making it more challenging to enforce region-specific content limitations.

  6. Device concurrency limits: OTT platforms need to manage the number of concurrent users and devices, which adds complexity and potential security risks.


These challenges highlight the differences in security management between traditional STB/DTH broadcast and OTT applications.


DTH (Direct-to-Home) broadcast systems are not impacted by peak events and require less infrastructure scaling compared to OTT (Over-the-Top) platforms. DTH systems can accommodate any number of customers without additional infrastructure, while OTT systems need to manage network, CPU, memory, database, and software implementation to scale.


OTT platforms must support millions of concurrent users without degrading customer experience and handle peak events, like last-minute logins for live streaming channels. Traditional IT services used virtual machines and physical infrastructure, which involved long lead times and overprovisioning. Nowadays, the expectation is for on-demand scaling, with systems automatically expanding and contracting as needed.


However, even with cloud service providers, there is no guarantee of infinite capacity, and 100% reliability during peak events remains a challenge. OTT platforms also depend on the streaming CDN, which relies on ISPs, telcos, and internet backbones, all of which are outside the control of the OTT operator. Engineering teams must maintain relationships with network providers to secure the best customer experience.


PayTV executives should recognize that the engineering skillsets, design patterns, and implementation practices differ significantly between OTT and DTH STB software development, requiring different approaches to ensure successful operations.


Disaster recovery and business continuity are generally less complex and expensive to implement in OTT services compared to DTH broadcast systems. In the case of SVOD services, disaster recovery involves duplicating the stack and supporting services in multiple data centers or cloud regions. However, for OTT services that replicate PayTV services on DTH, disaster recovery becomes tightly coupled with the availability of the broadcast environment.


OTT engineering teams may operate independently from the main PayTV business, allowing them to implement different strategies. However, as OTT matures and consolidation becomes necessary, engineering teams should work closely together and leverage existing broadcast techniques and infrastructure to achieve cost and efficiency benefits.


Disaster recovery in OTT benefits from the cloud's "just-in-time" capabilities, reducing upfront infrastructure costs and providing flexibility in responding to potential events or situations.


A significant aspect of the customer experience in streaming services is outside the control of the TV operator due to the complex nature of the internet and the various components, hardware, and networking policies involved. Mobile networks, which are rapidly overtaking fixed-line internet, add further challenges for TV operators in maintaining quality of service or experience. Partnering with telco providers and establishing network agreements can help address some of these issues, but without such agreements, the OTT provider may be at the mercy of the telco operators. Sometimes, a poor streaming experience may be caused by the telco operator's limited capacity, but customers often perceive it as a problem with the OTT service provider.


The author of this text has 20 years of experience in engineering Digital TV software systems, having witnessed and participated in the evolution of the industry. Their expertise includes working with set-top-box applications, middleware, broadcast headend software systems, IPTV, and transitioning into engineering management roles. Recently, the focus has shifted towards online streaming as the future of TV. The author believes that traditional broadcast TV systems with unconnected STBs are becoming obsolete, and PayTV operators should embrace more modern, open stacks and focus on reducing operating costs instead of investing in outdated technologies.



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