Did Jim Stafford appear on Andy Griffith show?
Did Fred Rogers ever appear on the Andy Griffith Show?
No, Fred "Mr. Rogers" Rogers never appeared on the Andy Griffith Show.
Which Andy Griffith show episode does Andy co-sign in?
Did Andy and Helen ever marry on the Andy Griffith Show?
Yes and no. They did not get married on the Andy Griffith show, but they did get married on the spin off show Mayberry R.F.D. I believe it was in the first episode.
Did Andy Taylor ever wear a hat on the Andy Griffith Show?
If this was the title character, certainly, a Police-type garrison hat, as officers customarily wear even indoors, like the Pentagon.