if you zap through channels, and tv cards are changed during that, then the RTSP streaming dies.
user sees a message that the stream x.x can not be played

h4. Steps to Reproduce
you need at least 2 TvCards
ChanA on Card1 - ChanB on Card2

1.enter myTV
2.tune ChanA
3.change to ChanB
4.change to ChanA
*.
*.
*.
after a few (or the first!) channelchanges, the RTSP stream will die and show you "unable to play stream x.x"

h4. Additional Information
http://forum.team-mediaportal.com/mediaportal-releases-315/multiseat-tuning-channel-suddenly-fails-77602/