New York ? NBC promised viewers of its Olympics telecast on Saturday that it would no longer air the disturbing video of a Georgian luger who died after flying off the track and slamming into a steel beam during a training run.

Several people had complained about the gruesome nature of the video, which also showed rescue workers trying to save the bloody Nodar Kumaritashvili after his accident. NBC showed it at the beginning of its telecast of the Olympics opening ceremony on Friday, and it was also seen earlier on the ABC, CBS and NBC evening newcasts.

Olympics host Bob Costas assured viewers they would not see the video at the beginning of a report Saturday night on how Olympics officials had made changes to the luge track in response to Kumaritashvili’s death.

Still, it wasn’t a blood-free telecast on Saturday. NBC chose to air videotape of a gruesome injury suffered by American speedskater J.R. Celski in a competition months before the games. Celski’s skate cut his leg, and his blood could be seen spurting onto the ice.

NBC said some callers had complained about use of the luge video on Friday, and Twitter was aflame with disgust.

Kim Hartman, a freelance writer from Charleston, W.Va., wrote on a CNN posting that NBC should be ashamed for airing it at the opening of the Olympics.

NBC’s Brian Williams had warned viewers before showing the video on Friday that “these pictures are very difficult for some people to watch.”