A recent post asking whether Denise Crosby's appearance in "Redemption" was a surprise made me think about the episode trailer, which in the days of yore was basically ALL the advance info we'd get on an episode (save for maybe a nugget in Starlog). You can find all those trailers here -- they're a joyful artifact from the era. (And old-timers like me, they're occasionally a decent "fall-to-sleep" listen-to playlist -- see how far you get before you nod off.)