Wasn't there the scene with Robert Conrad in which Columbo thinks the OJ is "off" but Conrad tells him it's carrot juice? It's been a while since I saw that episode.

Yup Mike...you are right....and in Identity Crisis Columbo crashes Nelson Brenner's party and they sit at a table on the patio, and Brenner pours himself a great glass of OJ.

(Mrs. Peck!!! help me!!! I am doing it!!!! )