I watched the same show. as I recall, he did believe in UFOs. he just didn't believe in Bob Lazar, which no one who does a minimum of research should.
here's my question for all the people who believe he's a "disinformation agent"--had you even heard of Area 51 before he started telling his story? doesn't he just draw attention to the secret base?
"Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"
"You can't erase icing."
"I can't believe it doesn't work! I found it on the internet, man!"