TVs, I mean TVs made to be TV sets, don't have PCs so to speak running them. I don't know what proportion of them use that, but there are lots of chips made to

TVs, I mean TVs made to be TV sets, don't have PCs so to speak running them. I don't know what proportion of them use that, but there are lots of chips made to lower the chip count while providing the specific functionality needed to do a good job of rendering compressed video. So between "single chip" TVs where lower chip count is the objective and "high end processing" where a better image quality is the goal, I expect most TVs use rather dedicated solutions. For example, chips like: https://www.nxp.com/products/no-longer-manufactured/connected-media-processor:PNX9520E https://www.nxp.com/products/no-longer-manufactured/connecte... https://www.nxp.com/products/processors-and-microcontrollers/arm-processors/i-mx-applications-processors/i-mx-mature-processors/multimedia-applications-processors-hd-video-high-end-advanced-applications-arm-cortex-a8-core:i.MX537 https://www.nxp.com/products/processors-and-microcontrollers... https://news.synopsys.com/home?item=122891 https://news.synopsys.com/home?item=122891 (who in the world thinks it's a good idea to do press releases with no date? These people is who) https://news.synopsys.com/home?item=122565 https://news.synopsys.com/home?item=122565 So anyway, that doesn't mean it's impossible to free them - mods / reflash are available for some DSLRs for example. But it's more difficult. There are however "universal" TV main boards for replacements... And these may have more documentation available? Maybe?