I tested a private build this morning. I don't think the current SVN Build has the fixes. At 12AM tonight it should.
You turn off time shifting in the MyTV preview screen. It will have a orange light/button enabled when it is on.
Also turn off EPG grabbing.
I'm also posting a link to your pastebin:
http://mp.pastebin.com/644425
When you say you have a ton of decoders are you referring to options under Capture Cards? Or just video decoders. You should really only have 1 option under capture cards to choose from.