The first episode of Punk'd ever aired was Justin Timberlake crying over $904,000 in fake back taxes. The man watching from a hidden bunker turned that show into one of the best venture capital track records of the 2010s. March 17, 2003. Timberlake is 22, fresh off his first solo album. Dax Shepard, still unknown enough that celebrities couldn't recognize him, plays the IRS agent. House seized. Cars seized. Guitars seized. Then Shepard tells him they're taking his dogs, and Timberlake sits on…