As it turns out, a 30 second skip is buried within the programming of the TiVo and can be brought to the surface using an Easter Egg. After enabling the 30 second skip feature, The --arrow| button becomes a 30 second skip button. Once you begin using this feature, you'll wonder how you ever lived without it.

So how do I do this? It's easy.

BigMarv's How I Did That | Tivo's 30 Second Skip Easter Egg