Did you install 0.7 and is it working now again? If the excact same setup is working with 0.7 but not with 0.7.1 we should be abe to figure out why by looking at the code changes.You can still download 0.7 from google code: http://code.google.com/p/wifiremote/downloads/detail?name=WifiRemote_0.7.0.mpe1
Can you please give some details on your setup? TV server installed locally? Are you using 4tr/argus? Does the crash happen when wifiremote is deactivated?
Local Installation, Only MePo. When Wifi is deactivated TV is working, when activated it stopps after a second or so. Startet happening with 0.7.1
Can you try to disable other plugins (maybe there is some problem in combination with another plugin), eg. MusicInfoHandler and see if the issue still happens?
Is there anything happening out here regarding TV not working with WiFi Remote 0.7.1? Seems as others have this issue too.