BeoLink 1000 ought to work just fine. Press TV...then use the number keys to 'direct dial', or use the skip-search buttons to go up or down the dial. There are alo up-down buttons on the Avant itself.
This all assumes that the Avant has been set up properly to begin with of course, and I'll let my EU friends help you there, as the US Avant is a bit different.
We kid because we love.
Bang & Olufsen Tysons Galleria
McLean, VA USA