If you press menu, select TV/Radio then select a channel while watching a recording the system thinks live TV is a recording and many functions are disabled (channel up/down, timeshift). You have to press stop to exit playback mode.
Although it's fairly unlikely someone would get in this position rather than stopping their recording to get back to live TV, the system should know you have changed from playback to live mode. It does realise this if you switch to live through the EPG.
Scotty
Can't change channels
Can't change channels
T3 - 2TB WD Purple, Logitech Harmony Smart Control
T2 - 60GB Patriot Blaze SSD, Logitech Harmony One
IceTV
T2 - 60GB Patriot Blaze SSD, Logitech Harmony One
IceTV