During the 1960s, there were only five male performers of East or Southeast Asian ancestry in regular or recurring role on tv: the cook Hop Sing (Victor Sen Yung) on Bonanza, the valet Kato (Bruce Lee) on The Green Hornet, Sulu (George Takei) on Star Trek, and two assisting detectives on Hawaii Five-O. Mostly servants and sidekicks. Only Sulu was ever displayed shirtless, and that was to signify that he had become mentally unstable.
In spite of Bruce Lee's influence in popularizing Asian muscle, the 1970s were even worse: Keone Young (right) as a science-nerd teenager on Room 222, the dissolute, hard-gambling dtective Yemana (Jack Soo) on Barney Miller, teen hangout proprietor Arnold (Pat Morita) on Happy Days, and Sam (Robert Ito), lab assistant on Quincy, M.E. Hawaiian singer Don Ho had a brief daytime tv show.
There were some hunks among the sidekicks and servants, but again, not a button out of place.
But they were exceptions. Today, Asian representation on tv is almost as bad as gay representation: less than 2% of regular or recurring roles, lots of servants and sidekicks, lots of humorously asexual nerds, without so much as a flexed bicep.