I saw Negative Reaction for two reasons, I love Columbo and I love Dick Van Dyke(Mary Poppins, Chitty Chitty Bang Bang, Diagnosis Murder), so this episode was like a match made in heaven. One or two scenes go on for a little too long, but other than that it is a very solid Columbo outing with a lot going for it. It is striking to look at with great photography and locations, and the music is intense enough. The story is involving and well-rounded off at the end, and the script is well written with enough grit and humour to satisfy, especially the scene with Falk and Van Patten, one of my favourite Columbo moments. And the acting is great, Joyce Van Patten is hilarious and Peter Falk is exceptional as Columbo. But it was Dick Van Dyke who was the biggest surprise, he was wonderful in this episode, it is so different from his other roles. Here he plays a ruthless and conniving villain and he does it so well. Overall, a rock solid episode, with a great if different performance from a comedy legend! 9/10 Bethany Cox