Re-mapping channel numbers

This sounds barmy but bear with me!....
Is there a way to trick TiVo when changing channels to go to a different channel than the one input by the user? For example, on a sky setup, when I enter 101 to goto BBC1 via the remote, I would like TiVo to actually change to 143 BBC1HD.

Is there a way to trick TiVo when changing channels to go to a different channel than the one input by the user? For example, on a sky setup, when I enter 101 to goto BBC1 via the remote, I would like TiVo to actually change to 143 BBC1HD.