If you don't want to move the cables, you should look at buying a BeoLink Active. This box will take MasterLink audio and send it to PowerLink speakers. It only has one PowerLink output so you may need a splitter depending on the speaker configuration. Also, you can run a special cable (I think SoundsHeavenly carries them - see ads on this site) from the TV's analog output (if it has one) to the "PC" port of the Active and listen to the TV via the B&O speakers connected to the Active.
Active boxes can be found 2nd hand relatively cheap, although you may need to buy a new IR receiver as usually the 2nd hand ones do not have these.
Alternatively, you could look at moving the Ouverture to where the TV used to be, and put the TV somewhere else (or figure out how to have both there). Locating the Ouverture near the TV would also allow you to run the audio from the TV to the AUX input on the Ouverture and listen to the TV via B&O speakers.
Stan