Those 2 Irwin Allen Sci-fi shows were from the '60s. By 1970, they were already in syndicated reruns on the then-fairly new UHF
Unless, you're referring to the animated version that was out in 1973; the original Star Trek
T.V. series doesn't count as a '70s show because it was cancelled after the 1968-69 season.
I don't believe the original poster was counting syndicated reruns
|Quoting JGPH1A (Reply 13):|
Is Dallas really a 70's show ? Technically yes, but it's biggest success was in the 80's (Who Shot JR was in '79).
Even if the show debuted in late '79, it would count as a '70s show (as well as an '80s show that carried-over from the '70s). Just like Adam-12, Hawaii Five-0,
and The Brady Bunch
would be considered '70s shows as well despite the fact that all 3 shows first started in the late '60s.
Here's a '70s show title, that I'm surprised nobody mentioned yet; it debuted in 1977: Soap
"TransEastern! You'll feel like you've never left the ground because we treat you like dirt!" SNL Parady ad circa 1981