I'm having problems with freeing up the tuner. Example: I'm recording The Walking Dead on tuner 1, and recording the Super Bowl on tuner 3. I want to watch Cops but a menu pops up saying that I am recording & watching The Walking Dead on tuner 2 also. I tell it to free up tuner 2 and watch Cops on ch 241. Then it stops recording The Walking Dead on tuner 1 & 2. Why can't I free up tuner 2 and watch Cops while The Walking Dead is recording on tuner 1? It's driving me crazy!! Please help!!