American Dad is sometimes very funny - but it's also very uneven, often alternating between good and bad episodes all the way through a season. However, this is the first time I've been so bored by an episode that I felt moved to write a review.
The pre-credits sequence is actually pretty funny, with Stan 'telling it how it is' to the whole family. But when the main plot kicks in - some utter nonsense about Stan getting a hair transplant and a Rod Stewart haircut - it goes downhill fast.
Roger's personas, like the show in general, can be very funny - but then again, sometimes they are just annoying and tedious. In this case, Roger's 1970s hairdresser character is most definitely the latter; there simply isn't anything funny about him. And what's with focusing a whole episode around satirising Rod Stewart? Much of the audience probably don't even know he is, and even if you do, he hasn't been part of the cultural zeitgeist for at least 30 years.
The plot doesn't really go anywhere, and the jokes mostly fall flat. A very poor episode.