21x17 The Caves of Androzani Part One [2nd watch]
After just four episodes in the presence of the Fourth Doctor (the lowest amount yet, but not the lowest overall), #bbbDW50 races on to the titular Time Lord's fifth incarnation.
This one's a pretty clear choice for a celebration of the show's 50th anniversary: it's the story most recently voted the best ever by fans, in (where else) DWM's Mighty 200 survey. There are a number of contenders for such a lofty position (other regular incumbents include Genesis of the Daleks and The Talons of Weng-Chiang), but Androzani is also a deserving choice -- not least because two of its four episodes feature some of Doctor Who's best ever cliffhangers. (The fact that the middle one's remarkably poor should just be overlooked.)
Despite being a personal favourite too, I've only actually seen it once -- I first got into Who through the Target novelisations, and Androzani was one I read and loved from those early days of my fandom. Nice to revisit it properly, then -- it deserves it, it's bloody great.
2x20 The One Where Old Yeller Dies [4th or so watch]
The Hoff's Best Film ...Ever!
1x06 The Hoff's Best Romantic Comedy Film ...Ever! [season finale]
Action, Horror, Sports, Sci-Fi... Yeah, rom-com totally fits with that.
2x10 Chinese Chicken
[Watch it (again) on 4oD.]