The program was also available in high-definition on either ESPN, ESPN2 or ABC. Along with the press release of this program, ESPN also announced plans for a daily show devoted to NASCAR entitled NASCAR Now. NASCAR Countdown was telecast from a new, state-of-the-art mobile pit studio, similar to NASCAR on Fox's "Hollywood Hotel."
On March 4, Fowler substituted for Musburger again, this time as the only host. ESPN did not explain Musburger's absence, but the race was held in Mexico City and it is possible that Musburger could not enter Mexico due to a lack of a valid passport. (Since January 23, 2007, U.S. Immigration and Customs Enforcement, or ICE for short, has required all visitors from the U.S. to either Canada or Mexico to carry passports in those countries. The law took immediate effect for air travelers, such as those working the NASCAR on ESPN broadcasts.)[1]
On March 10, the first of the six races on broadcast sister ABC, the two-studio setup returned at Las Vegas Motor Speedway and Musburger and Fowler co-hosted once again.
Countdown was pre-empted in consecutive weeks on April 7 and 14 because women's tennis matches, the preceding programs on ESPN2, ran long both weeks. It was also pre-empted on October 13 because the Arizona-Southern California football game ran longer than anticipated that day.
Musburger returned as the host for the June 30, 2007 Busch Series telecast from New Hampshire on ABC.