Those of y'all who have followed me for a while know that the Spouse is as big a geek as I am, but largely in different fandoms. For example, he's much more (or, from a different perspective, less selective) of an anime fan than I am. While we do have some shared fandoms (we were both Whovians before being a US Whovian was cool), for the most part we head to different panels at cons.
The Spouse actually got me into Channel Awesome and its siblings, more or less by accident; someone linked him to one of Todd in the Shadows's reviews, and he got really into them, then started showing them to me. I was curious about the people who were showing up in the cameos and crossovers, so I started watching some of the other producers; the Spouse did the same for Rap Critic but seemed content to stop there for a while. I'm not sure which of us landed on Chez Apocalypse first, but I started mainlining Brows Held High while the Spouse went for Folding Ideas. Eventually we ended up both watching the others' discoveries. I went from there to the CA anniversary movies, which the Spouse declined to watch on the grounds that he was interested in the reviews themselves, not the fictional bits (we'd run into the same issue when we'd discovered MovieBob a couple of years before - Spouse didn't want to watch the Game Overthinker reviews because of the storyline bits).
I more or less goaded the Spouse into watching the Brad Tries reviews by accident, and from there he picked up the Midnight Reviews and then the Cinema Snob reviews on his own. He seems to be enjoying those, but is much less interested in the Film Brain reviews, either BMB or the Projector ones, which seems odd to me, since the Spouse is as big an Anglophile as he is a Japanophile and Film Brain's reviews are pretty review-y rather than riff-y.
Anyway, the Spouse is a much bigger comic fan than I am - I've mostly been a Marvel girl since before puberty, while the Spouse has ranged across multiple publishers for roughly the same amount of time and has been more interested in the creators. So he'd been aware of Linkara for a long time, but not particularly interested in watching him. When I started marathoning At4W last summer, the Spouse was vaguely interested in what I thought, but not at all interested in watching with me - mostly because he was actively turned off by the storyline, again. However, because this last year or so has been so light on storyline because of the movie, the Spouse has sat through several episodes with me and gotten interested enough to watch some, but not all, of the back episodes. On the one hand, I'm happy to share this with him. On the other hand, the skipping around drives me absolutely batshit, especially when we jump from a relatively recent episode all the way back to the early ones where the sound is awful. There are positives to sharing a fandom with one's spouse, but I really wish he'd either just watch the new ones as they came out or attempt to watch the old ones (even if he skips the ones he'd not interested in) in chronological order.