I was a bit disappointed by the first episode myself. If you pay attention to the news daily, then the show seems like a full on re-run. This seems to be targeted at folks that cannot check in on the news daily, and want exactly what the title states...."Last Week Tonight"
Also, the comparison to Real Time is a pretty far stretch IMO. The mass satire approach by John Oliver's show leaves alot to be desired if your after conversation regarding each topic.
I dunno...I am a john Oliver fan, but I think he misses what I hoped the show was going to be.