- Hilarious in Hindsight: "Gathering Of Theives," has two examples, one best left spoilered : the other is the sight of Robert Foxworth playing a conniving Texan hustler... he originally cast as J.R. Ewing; the same episode has Tyne Daly as a fairly plain brunette who happens to be partners with a much more attractive blonde who became the Texan's partner in a land scam, really working with her brunette friend.
- Narm: Barnaby drawing a gun on his son's killer in "Requiem For A Son" (the pilot) and saying "Drop it, or I'll kill you where you stand." Unfortunately he's about as fearsome as Peter Perfect.
- Retroactive Recognition: Lois Lane turns up in "A Trial Run For Death."
- Seasonal Rot: Despite the show running a solid eight seasons, this seemed to begin around season 5 when J.R. was introduced - he wasn't even remotely like Barnaby, was a skirt chaser, and many episodes focused on either J.R. or Betty investigating crimes (indeed, Betty is the focus of the Series Finale) while Barnaby himself would only appear for maybe 2 minutes per episode, with the excuse that he was on another case, due in court or some other reason.
YMMV / Barnaby Jones