Haven't experienced this in a few years, but we got our first blank recording last night (Community). Not sure what the problem is. Big Bang Theory scheduled at the same time as Community. Big Bang recorded fine. Community shows 29 mins (partial) and when it is started, goes straight to the end (I've tried rew to no avail) and asks if I want to keep or delete. We last had this problem a few years ago and discovered a bad LNB on tuner 2, but our signals appear to be OK. Any thoughts?