Problem: Monty Python (also collectively known as The Pythons) were a British surreal comedy group who created their sketch comedy show Monty Python's Flying Circus, which first aired on the BBC in 1969. Forty-five episodes were made over four series. The Python phenomenon developed from the television series into something larger in scope and impact, including touring stage shows, films, numerous albums, several books, and musicals. The Pythons' influence on comedy has been compared to the Beatles' influence on music.

Having considered the possibility at the end of the second season, Cleese left the Flying Circus at the end of the third. He later explained that he felt he no longer had anything fresh to offer the show, and claimed that only two Cleese- and Chapman-penned sketches in the third series ("Dennis Moore" and the "Cheese Shop") were truly original, and that the others were bits and pieces from previous work cobbled together in slightly different contexts. He was also finding Chapman, who was at that point in the full throes of alcoholism, difficult to work with. According to an interview with Idle, "It was on an Air Canada flight on the way to Toronto, when John (Cleese) turned to all of us and said 'I want out.' Why? I don't know. He gets bored more easily than the rest of us. He's a difficult man, not easy to be friendly with. He's so funny because he never wanted to be liked. That gives him a certain fascinating, arrogant freedom." The rest of the group carried on for one more "half" season before calling a halt to the programme in 1974. The name Monty Python's Flying Circus appears in the opening animation for season four, but in the end credits, the show is listed as simply "Monty Python". Although Cleese left the show, he was credited as a writer for three of the six episodes, largely concentrated in the "Michael Ellis" episode, which had begun life as one of the many drafts of the "Holy Grail" motion picture. When a new direction for "Grail" was decided upon, the subplot of Arthur and his knights wandering around a strange department store in modern times was lifted out and recycled as the aforementioned TV episode. While the first three seasons contained 13 episodes each, the fourth ended after just six. Extremely keen to keep the now massively popular show going, the BBC had offered the troupe a full 13 episodes, but the truncated troupe (now under the unspoken 'leadership' of Terry Jones) had come to a common agreement while writing the fourth series that there was only enough material, and more importantly only enough enthusiasm, to shoot the six that were made.

what year did it close?

Answer with quotes: 1974.

Question:
Louis Burton Lindley Jr. was born in Kingsburg, California, the son of Sally Mosher (nee Turk) and Louis Bert Lindley Sr., a Texas-born dairy farmer. Young Lindley was an excellent horse rider from an early age. Known as "Bert" to his family and friends, he grew bored with dairy farming and began to make a few dollars by riding broncos and roping steers in his early teens. His father found out and forbade this activity but he took no notice, went to compete in a rodeo, and was told by the doubtful rodeo manager that there would be "slim pickin's" for him.
After nearly 20 years of rodeo work, his distinctive Oklahoma-Texas drawl (though he was a lifelong Californian), his wide eyes, moon face, and strong physical presence gained him a role in the Western film film Rocky Mountain (1950) starring Errol Flynn. He appeared in many more Westerns, playing both villains and comic sidekicks to the likes of Rex Allen. Hollywood made good use of Pickens' rodeo background. He did not need a stand-in for horseback scenes, and he was able to gallop his own Appaloosa horses across the desert, or drive a stagecoach pulled by a six-horse team. In a large number of films and TV shows, he wore his own hats and boots, and rode his own horses and mules. Pickens appeared in dozens of films, including Rocky Mountain (1950), Old Oklahoma Plains (1952), Down Laredo Way (1953), Tonka (1959), One-Eyed Jacks (1961) with Marlon Brando, Dr. Strangelove (1964), Major Dundee (1965) with Charlton Heston, the remake of Stagecoach (1966; Pickens played the driver, portrayed in the 1939 film by Andy Devine), Never a Dull Moment (1968), The Cowboys (1972) with John Wayne, Ginger in the Morning (1974) with Fred Ward, Blazing Saddles (1974), Poor Pretty Eddie (1975), Rancho Deluxe (1975), The Getaway with Steve McQueen, Tom Horn (1980), also with McQueen, Beyond the Poseidon Adventure (1979) with Michael Caine and Karl Malden, An Eye for an Eye (1966) and Pat Garrett and Billy the Kid (1973). He had a small but memorable role in Steven Spielberg's 1941 (1979) in scenes with Toshiro Mifune and Christopher Lee; during one scene, he enumerates the objects on his person, similar to the way he does in the "Survival Kit Contents Check" scene in Dr. Strangelove. In 1978, Pickens lent his voice to theme park Silver Dollar City as a character named Rube Dugan, for a ride called "Rube Dugan's Diving Bell". The diving bell was a simulation ride that took passengers on a journey to the bottom of Lake Silver and back. The ride was in operation from 1978 to 1984. He also played werewolf sheriff Sam Newfield in The Howling (1981). In 1960, he appeared in the NBC Western series, Overland Trail in the episode "Sour Annie" with fellow guest stars Mercedes McCambridge and Andrew Prine. Pickens appeared five times on NBC's Outlaws (1960-62) Western series as the character "Slim". The program, starring Barton MacLane, was the story of a U.S. marshal in Oklahoma Territory -- deputies played by Don Collier, Jock Gaynor, and Bruce Yarnell -- and the outlaws that they pursued. In 1967, Pickens had a recurring role as the scout California Joe Milner on the ABC military Western Custer, starring Wayne Maunder in the title role. In 1975, Pickens was in another Western, playing the evil, limping bank robber in Walt Disney's The Apple Dumpling Gang; that same year, the exploitation classic Poor Pretty Eddie was released, with Pickens portraying twisted Sheriff Orville. He provided the voice of B.O.B. in the 1979 Disney science-fiction thriller The Black Hole. His last film was his least notable, Pink Motel (1982) with Phyllis Diller.
Answer this question using a quote from the text above:

what was his best act?

Answer:
Pickens appeared five times on NBC's Outlaws (1960-62) Western series as the character "Slim".