Probably the best thing to do is travel back in time to July 12, 1990 when the show premiered. You can either 1) Build a time machine, 2) Search for a wormhole, or 3) Seek out the TARDIS.
But be careful. You don't wanna end up in the time of dinosaurs. That would suck since 1) Velociraptors are friggin' scary, 2) You'd probably be lonely, and 3) Well, no Northern Exposure, which defeats the purpose of time travel.