As far as I know this was the American TV debut of Bob Marley & The Wailers with "Kinky Reggae".
Bob Marley & The Wailers made a rare American television appearance in the most odd place, The Manhattan Transfer Show, a 1975 four week summer variety show replacement for Cher. The Wailers funky grooves were a hot refreshment for music parched souls in 1975 (and the Manhattan Transfer show overall was pretty cool as well, it's on You Tube). This is 5 minutes of pure bliss:
The original Bob Marley & The Wailers broke up in 1974 with each of the three main members pursuing solo careers, this number is a rare opportunity to see the newly composed Wailers at their peak, before the hit with "No Woman, No Cry" and the troubles that followed a couple of years later.