A popular CCTV host's "improper remarks" that were caught on video at a dinner party have led to an investigation into the incident and a suspension of his programs.

The video, released online on Monday, showed host Bi Fujian using vulgar words about Chairman Mao Zedong while singing in the style of Peking Opera, enraging some netizens and causing a stir on the Internet.

CCTV said on its micro blog on Wednesday that it will investigate the incident, which it said many have found disturbing.