Eddie Murphy made his return to Studio 8H at 30 Rock on Sunday night, but he did it without any impressions or any of the characters he made famous during his years on the show. The actor and comedian followed a stand-up routine by fellow former cast member Chris Rock. But Murphy — who walked out on stage to a standing ovation — spoke only briefly, and the end of his remarks featured an awkward pause as he threw to commercial where it wasn’t quite clear if there was a technical glitch or something didn’t go quite as planned.