You don't have to. YTTV is all you need. And is probably half the cost of what you're paying. And you won't miss a game. But if you don't care about the money, and just want to stick to what is reliable and what you're used to, I totally understand that too.
I'm not talking just Tennessee games. I've watched over 200 college football games every year for the last 6 years. Also more college basketball games than that. Being retired certainly allows me to do that but its easy for me to record and then watch them. Maybe other services can do that also but I know this works...
Thanks