Just got on and read through this thread, but reading the OP first 2 posts, I believe you hit the nail on the head with the problem.Why not just go into your recordings and select the one you want to watch.
I use Dual Mode with Record Plus Enabled, and have 1 Local TV on TV1, and the other 3 TV's have both TV1 and TV2 available. The kids always have something scheduled to record, but when I programmed a series for my wife, it went to TV2 just like it should; and then when the kids try to record something at the sametime, it goes to TV1.
So with the wife at TV1, she had to watch her show being recorded on TV2 by going into DVR/DVR and select her show.
And with the kids at TV2, they had to watch their show being recorded on TV1 by going into DVR/DVR and select their show.
They each can pause their show, and fast forward through commercials; but of course can not go pass Live TV.