In 1995, the X Games took the Olympic concept to extreme sports like snowboarding, skateboarding, BMX, etc. The Games have grown consistently and are now shown on ESPN and big three network NBC.
In 2001, Vince McMahon and NBC developed the idea for the XFL with the slogan: "It's real football". Apparently, "real football" means no roughing penalties, trash talking announcers, scantily clad cheerleaders and nicknames on the back of jerseys. The XFL had 14 million viewers in their first week but their rating plummeted in the following weeks and the league folded after only one season.
In 2002, Spike TV (or TNN as it was called then) aired the first season of a sport called Slamball. Think basketball + football + trampolines. It's was designed to be a real life video game and it really delivers. Slamball was starting to build up a bit of a following but the sport was folded after two seasons. Don't worry Slamball fans, the sport is making a comeback in 2008.
The next "X" sport has arrived and it looks to be the worst idea since Tom Smykowski came up with the "Jump to Conclusions" mat in Office Space. It's called Xtreme Baseball and doesn't have any big hits, cheerleaders, or loud music. What does it have? Two baseball games happening at the same time on the same field. Wow...that does sound EXTREME!
It actually sounds pointless and ridiculous to me. Thankfully, this "sport" is so stupid that it's likely we've never hear of it again: