AC/DC have been celebrating the 40th anniversary of “Highway To Hell” by sharing vintage videos from their July 13, 1979 set on the Dutch TV show “Countdown.” The clips were previously available as part of the band’s 2007 “Plug Me In” DVD box set, but they were not available online until now. The latest one finds the band performing “Whole Lotta Rosie” off their 1977 album “Let There Be Rock.”