Am I the only one who is ALWAYS disturbed by the fast that in one of the last scenes (when Columbo wears his fancy shirt, and they order a drink) Columbo all the time looks like he wants to take a sip but he never does? :D

Of course, the show is very inconsistent about his drinking habits.
Although that might be the only time he actually orders one and doesn't drink it, I'm not sure.

I always thought it was great that you can tell they filmed it on an actual ship (except the hospital and the cabins they’re too small) and they are all running into the walls in the hallway, must have been rough seas