Magician Penn Jillette was forced to perform a disappearing act on ABC's Dancing With the Stars Tuesday night as he and tennis star Monica Seles became the first pair to be eliminated from the competition. In the ratings, the telecast itself danced rings around most of the competition, averaging an 11.4 rating and a 17 share, peaking in the final half hour with a 12.7/19. It also provided some sturdy coattails for the ABC magazine Primetime, which drew a solid 7.2/12 at 10:00 p.m. Nevertheless, the top-rated show of the night remained American Idol, which averaged a 14.3/22 from 8:00 p.m. to 9:30 p.m., peaking in the final half hour at 9:00 p.m. with a 15.1/22 (making Dancing With The Stars' 10.0/10 in the same half hour seem all the more impressive).