HD/Pvr & DSD1110 Channel swop

[Capesharks]

i have a strange one here... i had the HD Pvr set up i9n the lounge and the DSD1110 also set up in the longue but servicing the plasma in the bar and also the tv in the b/room. i noticed the channel in the bedroom was acting up so i tried to fine tune the tv to sort out the problem of the sound ( was very scratchy and intermittent ) that didn't work and then the suprise hit me... after doing a re-scan.. i can NO longer find the 2nd channel in the bedroom, but now the primary channel is there... WTF.... no cables were removed no tampering with them... anybody else have this happen to them and if so, how did you sort it out? the Picture quality has also decreased and i have white lines moving down the screen nearly every second or so.... weird... And the 2nd channel is still being shown in the bar as normal... Gremlins?