Last year I think the TV shows were separate from the main MCU. As someone who is more a fan of the TV universe I tend to prefer that because it helps keep the MCU section from being unmanageably huge for tag selection purposes when signing up, and because it allows me to choose separate, non-overlapping shows as separate fandoms (e.g. Agent Carter and Defenders) so I don't have to choose just my top favorite pairing or two from each show if I'm having to nominate and request several different shows as a single fandom. Basically, having them separate works a lot better for me as a fan.

However, I have to admit that combining them does cut down on the confusing-ness of some tags ending up in multiple categories (e.g. Peggy is both in the movies and the TV show) and is probably easier on an administrative level when you're not having to make judgment calls about where to include, say, a pairing like Frank/Karen that's in multiple shows. I would personally prefer having them separate but I'm open to whatever works better for the mods.