The 2003 World Amateur 10-Dance Championships were just shown on Oxygen (a cable channel) last week.
Dancesport events aren't shown very often in the US due to lack of interest in funding the production costs. The Ohio Star Ball used to be shown every year, but they stopped taping it in 2001 due to lack of funding. The 2000 edition didn't even show the actual competition, either -- it was the 20th anniversary speical show, with lots of performances by top couples and also group production numbers. So really, 1999 was the last year for the Ohio Star Ball (called "Championship Ballroom Dancing" on PBS).
Good TV (another cable channel) used to tape events at various competitions in the US, including the US DanceSport Championships in Miami, but they stopped doing it after the 2000 USDSC -- again, due to lack of funding. Sure, you can get advertisers when the show is being broadcast, but that doesn't help with the upfront pre-broadcast costs.
There were a couple of "made-for-tv" competitions on ESPN (cable), A&E (cable), Lifetime (cable), and NBC in 1999-2000. In this time period, one of the cable channels I mentioned also showed the World Amateur Latin Championships, and Good TV showed the World Professional Standard Championships once too. So it's not like no one has tried to put this stuff on the air. They have, but the ratings generated were not high enough to keep such shows on the air.
I was pleasantly suprised that the 2003 World 10-Dance was shown. I'm hoping this is the beginning of a new effort to get DanceSport on TV in North America.
Laura