From the liner notes

Gigantic (A Tale of Two Johns) is the celebrated true story of They Might Be Giants, the Brooklyn-based musical duo of John Flansburgh and John Linnell. Featuring appearances by: Janeane Garofalo, Michael McKean, Conan O'Brien, Andy Richter, Harry Shearer, Jon Stewart, Frank Black, Syd Straw, Mark Hoppus, Ira Glass, Sarah Vowell, Dave Eggers and many more.

Deluxe DVD Edition Includes (too much to list everything here!):

1) Feature Commentary - with John Flansburgh, John Linnell, director AJ Schnack, and Sarah Vowell.

2) Live Performances - including "Birdhouse in Your Soul" (The Tonight show with Johnny Carson, 1990), "Hide Away" and "Mr. Me" (Live on Joy Farm, 1987), "Fingertips," "Number Three," and "They Might Be Giants" (Live at the Polish National Home, 2001), "Boat of Car" & "Meet James Ensor" (Tower Records NYC, 2001), and more!

3) Five Classic Videos - directed by Adam Bernstein with introductions by John Linnell, John Flansburgh and Adam Bernstein including: "Put Your Hand Inside the Puppet Head," "Don't Lets Start," "(She Was A) Hotel Detective," "Ana Ng," and "Birdhouse In Your Soul."

4) Lots of Extras - rare bonus materials, unreleased footage, TV and Radio appearances including the Flood album promo video, a Nickelodeon Nick Rocks appearance from 1987, the NPR segment from This American Life w/ Sarah Vowell, videos created for the ABC prime time series Brave New World and many others.

5) Even More Extras - Scores of deleted scenes, raw footage, additional interviews and even a few hidden surprises!