Here's my Top 50 shows in no particular order, right off the top of my head. These are shows I still love and can't resist watching even after decades...
1. ALL IN THE FAMILY
SANFORD & SON
STAR TREK (original)
LAW & ORDER
SOUTH PARK
QUANTUM LEAP
MAGNUM, P.I.
BATTLESTAR GALACTICA
THREE'S COMPANY
PEOPLE'S COURT
QUINCY, M.E.
HILL STREET BLUES
THE SHIELD
THE SOPRANOS
OZ
FAMILY FEUD
THE MUNSTERS
THE ADDAMS FAMILY
NYPD BLUE
THE SIMPSONS
TWILIGHT ZONE (original)
OUTER LIMITS
SALE OF THE CENTURY
LET'S MAKE A DEAL
25. PERRY MASON
HOGAN'S HEROES
JUDGE JUDY
POLITICALLY INCORRECT
A-TEAM
GET SMART
SEINFELD
MARY TYLER MOORE
BEWITCHED
I DREAM OF JEANIE
THE MCLAUGHLIN GROUP
STAR TREK: DS9
SPACE GHOST
THUNDARR THE BARBARIAN
VOLTRON: DEFENDER OF THE UNIVERSE
THUNDERCATS
STAR BLAZERS
JUDGE MATHIS
JERRY SPRINGER
BATMAN (live action)
BATMAN: THE ANIMATED SERIES
FEAR FACTOR
GARGOYLES
RAT PATROL
THE HERCULOIDS
50. GROOVIE GHOULIES