In 1969, MTM Enterprises was organized by both Mary Tyler Moore and Grant Tinker,[2][3][4] and hired James L. Brooks and Allan Burns to create her sitcom.

[5] Brooks' show Room 222 has even been credited by the Television Academy Foundation for breaking the "new narrative ground" which developed MTM Enterprises' "major sitcom factories of the 1970s.

"[6] In 1971, co-founder Grant Tinker was forced to quit 20th Century Fox Television due to conflicts with how to run MTM, in order to maintain a full-time job at the company.

Weinberger, James L. Brooks, David Davis, Allan Burns, and Stan Daniels left MTM Enterprises for Paramount Pictures and started the John Charles Walters Company.

Lawyers backing NBC's then-owner RCA convinced Tinker to sell his remaining shares of MTM.

[22] The following year, Josh Kane, fellow partner of the Ogiens/Kane Company joined MTM as vice president for the East Coast offices.

[25][26] MTM's library assets however, were transferred over to 20th Television who retained them, even after Fox Family Worldwide was sold to The Walt Disney Company in 2001.