“The Big Three” Episode 102 – Pictured: Chris Sullivan as Toby, Chrissy Metz as Kate – The weepy NBC drama “This Is Us” left viewers in a puddle of tears weeks ago, as it closed out a Christmas episode with the fan-favorite Toby suffering what appeared to be a major heart attack – and just after he and Kate got back together, too. The show opened with Kate standing dazed in a chaotic emergency room.