Most of these are not new but just in case you don't frequent the TiVo Community boards here is a good list of them.

This is my personal favorite.

The 30-Second Skip

Series 1 TiVos (those that don't feature a USB port on the back panel) can have the benefit of the 30-second skip-past-commercials feature found in Series 2 boxes. The Advance button that normally brings you to the end of a recorded program will become the "30-Second-Skip" button:

While viewing a recorded program or live TV enter the following sequence on your remote:

Select, Play, Select, 3, 0, Select

If your TiVo plays three Thumbs Up "blings" in a row, the Advance button is now reprogrammed to skip forward by 30 seconds. This bit of reprogramming is not permanent--you'll have to redo it if your TiVo reboots.

[>>PVRblog]