Don't use "to guest". Does it really exist?
Say:
Steve Martin was a guest on Saturday Night Live the other week.
Steve Martin was invited on Saturday Night Live the other week.
Steve Martin was on Saturday Night Live the other week as a guest.
etc
<<
Or, um, could I say that Steve Martin "was welcomed" at Saturday Night Live? >>
That has a different meaning.
<<No, wait, what about the verb "to guest-star"?>>
Guest star, as far as I know, means to appear in a show as a guest actor. I think it only applies to dramas, soaps, movies. Not talk shows.
<<Should I use the verb "to visit" instead? >>
No.
Say:
Steve Martin was a guest on Saturday Night Live the other week.
Steve Martin was invited on Saturday Night Live the other week.
Steve Martin was on Saturday Night Live the other week as a guest.
etc
<<
Or, um, could I say that Steve Martin "was welcomed" at Saturday Night Live? >>
That has a different meaning.
<<No, wait, what about the verb "to guest-star"?>>
Guest star, as far as I know, means to appear in a show as a guest actor. I think it only applies to dramas, soaps, movies. Not talk shows.
<<Should I use the verb "to visit" instead? >>
No.