Seems like you'd also need a second tuner which would increase the cost a bit more. Ultimately the problem is that with old analog signals you just needed to w

Seems like you'd also need a second tuner which would increase the cost a bit more. Ultimately the problem is that with old analog signals you just needed to wait for the next V-Blank (4 hundreds of a second at the most) and you were good to go. With digital signals you need to wait for the I frame which can take dozens or hundreds of frames. And this assumes you have a good solid signal and can decode everything perfectly, if the set is trying to piece together a fragmentary signal it's even harder.