Tight but way too short. Rock Lobster should be a six minute epic.
At the opposite end of tight, my favorite SNL band appearance:
We were gathered around that little tv all night, at least as drunk as the Mats, patiently waiting through those terrible unfunny skits and horrible commercials, until - at last! - goddam Bastards of Young! “What the fuck is Bob wearing?!?” “Sing into the mic, Paul!” “Did he just say FUCK on tv?!?”
It was a truly glorious live tv moment. Like the moon landing for gen-x