Jackee Harry, Regina King, Hal Williams, and Marla Gibbs were all live in the NBC morning show's studio for the reunion.
"227" originally aired from 1985-1990. It followed the lives of a group of tenants in a middle-class apartment building (the "227" of the title) in Washington.
On Tuesday, members of the "Partridge Family" cast reunited on the program, including David Cassidy and Danny Bonaduce. Susan Dey, who played Laurie Partridge, was not present for the reunion.
There was another noticeable absence during Monday's "Eight is Enough" reunion - Adam Rich, who played Nicholas Bradford on the '70s sitcom. Rich endured many personal issues after his time on the show, including arrests and substance abuse.