The Batman T.V Series lasted for 2 and 1/2 seasons . ( From January 12th , 1966 - March 14th , 1968 ) You can do the math on how many episodes were in those 2 and 1/2 seasons .
I am a huge friends fan and i have the boxset so the answer is: 236 episodes .... 10 seasons... over 80 hours and it was filming from 1994 intill 2004,may and its still being shown on TV now!:)