This might be a indexing issue. If you don't leave your TiVo to index the full 48 hrs of your TV Guide data, you cannot correctly use the "Search by Title" option.

Alternativly, if you have your guide data, and a show has already passed its day, I have experienced that it will NOT show in the "Search by Title" until the upcoming week of TV Guide Data has been downloaded by your TiVo and indexed properlly.

If you get stuck however, you could probably add a Wishlist with the title name just so you catch the upcoming shows so you can then set a Season Pass for it.

Hope this answer helps.

Cheers