I'm using Rasplex 0.2.2 with a Samsung TV (C576) and it works fine. But there is a small thing and I am going crazy about it. The Raspberry Pi is connect via USB, so I don't need a power supply. After power up the TV the Raspberry Pi change the source to hdmi. This is not always the source I need. Sometime I realy watch tv.
I wounder if there is a way to configure this behaviors?
0.22 has been doing this for me also. This never occurred on previous versions. Input source always switches to RasPlex irrespective of whichever input source i currently have selected...and i have the same setup, connected via USB. So every time i switch my TV on, even to watch a DVD, Rasplex forces itself to be the current input source about 30 seconds after switching TV on.
I know many TVs have a feature of HDMI(I forget the exact name), but it allows devices to make themselves the appropriate source(alternately they can turn off the TV too). I don't know anyone that uses the feature. But it sounds like your TV has the feature(mine does too). Many TVs can have that feature disabled via a menu setting.
The intent of the feature was that you turn the TV on, then power on your DVD player... and automagically the DVD player becomes the source for your TV input. Naturally it sounds great in theory but in practice it doesn't always go so well.