Sarah is Tweeting about how much she misses him so it's a pretty elaborate act.
"'Extremely High Voltage.' Well, I don't need safety gloves, because I'm Homer SimpSBZZZZ" - Frank Grimes

I don't care for her at all, but I also don't know her. I suppose he sees her private persona attractive. Maybe it's not as crass and offensive.

They met at the season 2 wrap party.

Does anyone know when they got together? Just wondering if they met on the set of Masters of Sex?
Sarah played Helen, the gay love interest of a character called Betty for a couple of episodes, although she wasn't actually in any scenes with Michael Sheen (aka Dr Masters), they must have met during that work?
I like them both as individuals, though as a Brit I do find Sarah Silverman a bit in-ya-face/brash (date say a fair few Americans do too mind you!), but think she's clever and funny, but not an obvious couple by any means. Good luck to them!

Been listening to the podcast and they do sound utterly adorable together and they do say very sweet things about each other in separate interviews.
I do think that they are an unlikely couple but it's not as if its odd because of something weird or creepy like a huge age gap or because either of them are still technically married to someone else.
It's just because we - as complete outsiders to their lives - think we know them as just a brassy comedian and just a proper British actor and their worlds should never collide. They're both attractive and talented and successful people who work in showbiz and Hollywood is full of those kinds of couples. They aren't that odd when you think of it that way.
From hearing them talk about and to each other in interviews I really do like them together and as individuals even more now.

The response is a bit late. but Sarah Silverman and Jimmy Kimmel used to be together, The whole segment is them joking about that. So yes, an act for sure.

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It's definitely an unexpected coupling but I guess that is what makes it interesting for them.

Just listened to The Nerdist podcast and they were pretty adorable. Chris Hardwick even commented on how cute they are together. I like them as a couple.
I don't like your face.

She's a bitchy nitwit just like she is with everybody else. I don't see how he can stand her, personally. lol
Does it matter? **** enough women and some of them will give you presents. Littlefinger

Yeah, Michael is on The Nerdist podcast and Sarah Silverman is hanging out in the background. I just started listening to it so it'll be interesting to see how they interact. I just can't wrap my brain around this for some reason. Not to bash Sarah or anything but I just can't figure it out.

When did they start dating? Such an odd combination.