When the one and only Bill Murray comes calling for interview, you drop everything to make it happen. In the first episode of “Sunday Sitdown,” Willie Geist meets up with the legendary actor on a moment’s notice to talk about his days on Saturday Night Live, his epic movie career, and everything in between, including the infamous 1-800 phone number he uses to connect with Hollywood. Even Wes Anderson, who directed Murray’s latest film “Isle of Dogs,” has to leave a message for him there, and they’ve worked on eight movies together. Murray opens up to Willie about his decision to live outside the spotlight, besides crashing a party every now and then.