Only got 11 out of 30. I got Dallas wrong and I've seen several episodes.

I missed three

I only got 23 of 30. I guess it's out to the woodshed for me.
MAGA! FAFO! Schrodinger's Cat walks into a bar, and doesn't. Dumbocraps: evil people who celebrate murder.

YOU GOT 23 OUT OF 30
You examined the evidence with great care! Nice work, Eighties ace!
I gotta go back and watch Thirty Something because I was too young to get the subject matter.

, BUT it's CLOSE to one of the two you MISSED.
“Call a SPADE, a SPADE; and a TRANNY, a TRANNY, or an IT!!!”.
"THAT'S SOME BAD
SHIT
,
HARRY
!".

I got 28 out of 30. I missed #24 and #30. Not bad considering that I hadn’t heard of more than a few of those shows, and guessed on them.
As to the one that you missed. Well, I’ve got a 1 in 30 shot at it, so I’ll guess the Father Dowling Mysteries, starring Richie Cunningham’s dad, and Rick Nelson’s daughter. It seems to be a pretty obscure show, that no one seems to remember. I almost forgot all about the Colby’s as well.
If at first you don't succeed, skydiving is not for you.

NEITHER of those two!
“Call a SPADE, a SPADE; and a TRANNY, a TRANNY, or an IT!!!”.
"THAT'S SOME BAD
SHIT
,
HARRY
!".

29/30
I got the last wrong.
Did you get The Days and Night of Molly Dodd wrong? Or Flamingo Road?