Stands for: Saturday Morning Television. Sometimes has the word 'Live' added to the end.
A TV show that ran on CITV in UK in the 90s. Originally hosted by Ant and Dec and Cat Deeley.
Had kids shows (was the only station who gave the Pokemon cartoon a chance and is commonly recognised as starting the craze) and skits such as C.H.U.M.S (a take off of Friends) etc. Got crappy after Ant and Dec left and eventually got cancelled
SM:TV is hilarious
I spent all saturday morning watching smtv