After yet another bug with YTTV I said to heck with it and cancelled. But since they just billed me today for another month I am stuck with YTTV till March 24th.
Today I wanted to watch 'Mad Money' from my library and it gave me 'Shark Tank' instead. And strangely, at the bottom of the screen there was no position marker!
I tried it on my Sony Bravia X950G and also my Fire TV. Same thing happened. However, it worked fine on my laptop computer.
If they could model YTTV after TiVo, or any other decent DVR I would be very happy with it. But they chose to be different. May work for some, but it is not for me.
Best of luck finding something that works for you. FWIW: I find YTTV to have fewer bugs than Dish, DirecTV, or Tivo DVRs, but I expect my usage is probably different from yours.