Ever wanted to meet Albert Einstein and wondered what he'd say about a matter? This is exactly what Olliver Cates once wondered. He never suspected that he would actually get to do just those things. By creating a time machinge, Olliver can bring back famous people from the past to help him with various problems in the present. It gets better every season, with Season 4 being the best of all seasons--the incorporation of a girl from the future. The ending of the series is actually quite good, and may even sadden some that it ended like it did, but it would've been great to have more episode to follow up on the series finale.
Overall, a great show I'd recommend to almost anyone!