I've seen some agents say they like to see TITLE meets TITLE or "this would appeal to fans of ..." and some who don't like comparisons at all. When I think of my MS, immediately two things come to mind, a book and a TV show. What do you think of using both to show that I know who my book would appeal to? Or would using a TV show be a big no-no?
I have a real aversion to using film and TV shows as comps. This is particular to me I know. The reason is that I don't have TV so a lot of times the comparison is useless to me. On the other hand I haven't read every book in the world (not for lack of trying) so sometimes those comps go over my head too.
I don't think it's cause for setting a query on fire to use a TV show as a comp, but I think it's smarter to use books.
The only big no-no in queries is bad writing.