I recall he was a notorious womanizer in his younger days. He was in with a crowd of young 60's actors who were notorious for partying but doggedly kept that image from the public. To the public, he and guys like Troy McClure, et al., were the All-American alternative to those dirty hairy hippies... Thing was, they were getting more tail than most hippies. In the end, with the usual hypocrisy, he eventually became a "family guy" conservative who shunned the "libertine attitudes" of the 70's and 80's.
Bert Ward, who played Robin and Robert Conrad on Wild, Wild West also had "bulge" problems in the 60's. They tried everything to conceal Ward's. I don't think they ever succeeded with Conrad... I was the horniest 9-year-old in Indiana watching those re-runs late at night with one hand under the covers!!!
Thank god all that went out the window by the time shows like Dukes of Hazzard and Startsky and Hutch came along. I can't tell you what happened in any Dukes of Hazard episode, but I saw everyone!!! Sometimes you'll catch those two guys on shows today or the country music station, and they still show fat and proud!!!