What's new and/or interesting on TV this week.

Cities of the Underworld (Mon, 9PM-10PM, History Channel) - Ooh, secret underground cities! Well, sort of. This new show takes a look at the history buried beneath famous cities of the world. In this first episode they find dungeons and illegal distilleries under Edinburgh. Here's hoping a Philadelphia episode is coming up soon...

Real Wedding Crashers (Mon, 10PM-11PM, NBC) - A new six-part hidden-camera comedy series from Ashton Kutcher, this time featuring improv performers pulling pranks at real weddings. Which sounded like a horrific idea to us at first, and now seems only slightly less horrific after we've learned that the bride and groom are always in on the gag.

Diners, Drive-Ins and Dives (Mon, 10PM-10:30PM, Food Network) - Another new Food Network series, hosted again by the winner of their host-picking reality show, Guy Fieri. This particular show sounds like a bit of a rip-off of Alton Brown's recent mini-series, Feating on Asphalt, but we love the concept so we're willing to give it a chance. Guy is traveling across the country, sampling American road food. In this episode he's looking for classic dishes like eggs over easy and... cabrito burger? What the heck's a cabrito burger? Well, we guess it's a classic to some people...

Beauty Pageants (Tue, 8PM-10PM, myTV [WPHL 17]) - Two in a row! It's the Miss Hawaiian Tropic International Beauty Pageant - hosted by Lorenzo Lamas, and held in Las Vegas, no less - and then the Ujena Bikini Jam in Puerto Vallarta, Mexico.

MythBusters (Wed, 9PM-10PM, Discovery Channel) - Myths about ninjas and martial arts. Awesome.

Image Credit: Flickr user Seth W.