Bob Barker retires. More significant than helming the sloppy enthusiasm of Price is Right is his longtime animal rights advocacy. 

From Wikipedia:

Bob Barker is well known for his work in animal rights. He became a vegetarian in 1979. That same year, he began promoting animal rights. Barker began ending each episode of The Price Is Right with the phrase: "Help control the pet population; have your pet spayed or neutered" in 1981 and was named national spokesman for "Be Kind to Animals Week" in May of that year. On A&E’s Biography program, Bob credited his wife, Dorothy Jo, with him becoming more aware of animal rights and becoming a vegetarian because she had done so. Bob said that Dorothy Jo was ahead of her time in terms of animal rights. Bob took up animal rights in order to keep doing something that his recently deceased wife had done. Fellow game show hosts Jack Barry and Bert Convy eventually followed Barker’s lead in promoting animal rights on the air.

During the first ten years of The Price Is Right, fur coats were often featured as prizes. After Barker became involved in animal rights, he insisted that the show not offer prizes that harmed animals, a demand to which CBS agreed; animals and fur coats have not since been offered on the program. Barker also forbids the re-airing of older episodes in which fur coats and live animals are offered.

Barker hosted the Miss USA/Universe Pageants from 1967 to 1987. In 1987, he requested the removal of fur prizes and stepped down as host when those in charge of the pageant refused.

Bob Barker’s DJ&T Foundation has contributed millions of dollars to fund animal rescue and park facilities all over the country. He works closely with Betty White as an advocate for animal rights.