This past summer, Matt Welch did a series of posts about great moments of rock and roll television now available on YouTube (sadly, his archives of this period disappeared). At the time, it prompted me to search YouTube for one important moment he neglected to include: Elvis Costello’s first performance on Saturday Night Live where he interrupts the song he was supposed to do and launches into the song he wasn’t supposed to do, “Radio, Radio.” That supposedly unauthorized change caused a bit of buzz at school the next Monday.

This morning, while looking for a recent SNL skit mentioned in the morning paper, I found that about a month ago, somebody uploaded that historic moment.