Advertisements Interesting belief... A quick check of TV Guide online shows considerably less channels than I can receive. A quick check of TV Guide online also shows no filmographies for multiple people that Gracenote lists... including one WishList I have set up. A quick check of TV Guide online shows programs like "American Idol" and "The Voice" have major cast listing issues. Rovi data has some things correct that Gracenote doesn't. Gracenote has some things correct that Rovi doesn't. Is your friend having any issues with his TiVo with the Rovi guide data?