[loeg]

Do you mean H.264, H.265, or the older MPEG codecs?

I think H.264 hardware is pretty widespread. H.265 less-so. Anything older than H.264 has been dead in the water for years.

[drmpeg]

Comcast VOD content sent to QAM set top boxes is still MPEG-2.

[tandr]

Doesn't it has "channels" which are using more advanced encoding?