When does Columbo first appear in each episode? – Mark's Blog

Mark's Blog – (occasional miscellanea)

Colombo: Murder by the Book (1971) Steven Spielberg

Columbo (TV Series 1971–1978) - News - IMDb

Chevy Mystery Show: “Enough Rope”

Columbo - A Brief History - Joseph Mallozzi's Weblog

In the TV show Columbo was Mrs Columbo a useful fiction invented by the detective and the odd occasion that other characters claim to have seen her she was perhaps a paid

TV Talk: 'Poker Face' gives 'Columbo' vibe; WPXI-TV reporter exits

The Rap Sheet: Oh, Just One Last Thing

Columbo - A Brief History - Joseph Mallozzi's Weblog