ThinkGeek is certainly on a roll today with the April Fools hijinks. Not only do we have Super Pii Pii Brothers (and its bizarre peripheral), but now we have Wii Sports on the iPhone, as well as a conduit for shuffling between dead video formats.

The Wii Sports on iPhone gag is nothing more than an unclickable banner ad, making us wish the joke was taken a bit further. The Betamax to HD-DVD converter, on the other hand, is quite the stroke of genius. The idea alone is brilliant, made even more so by the "promotional" video, viewable after the break.

If it's any consolation, it's entirely possible that the footage was recorded off of a Betamax cassette.

This article was originally published on Joystiq.

Something to do while in line at Six Flags