Hey ChelseaDrugstore, they did host SNL. Ed Koch only did a cameo, it was in October of 78. (I checked the SNL archive website)
Also, that Prince Charles sketch was when Luke Perry hosted, not Jerry Hall. That would've been on the show they re-ran last night, but sounds like they wouldn't have played it anyway.
Mick as Keith
Gabriel Byrne as Keith
Wasn't looking too good, but I was feeling real well.