Standard late 70s early 80s innuendo. The notable instances include:
-Jennifer wears a strapless dress that reveals her cleavage in the episode where Johnny takes a job offer in California.
-Mr. Carlson's wife gets pregnant and his employees discuss how romantic they think he'd be.
-Herb pursues Jennifer and Bailey throughout the series, but not in a violent way, more annoying than anything else.
-Les opens a box and finds a Copper Cob Award (a corn cob figurine made entirely of copper mounted to a small rectangular platform). He says "oooohhh" excitedly and holds it out innocently to show Jennifer, but she's creeped out by the shape of it (it closely resembles male anatomy). He says "I must go off to show Bailey!" and Jennifer whispers "oh dear."
-Jennifer tongue-kisses Johnny and he passes out. It turns out that she's pretending to be his wife to chase off a possessive man from her hometown.
-Several gay jokes, though not in an overly offensive or crude manner, are presented. These are more to show the prejudices of the times and why such jokes are wrong, so the series had them there as more of a statement.
-Les is rather sexist towards Bailey when she first shows up, telling her that she could never be with "the men of journalism", but as he gets to know her he apologizes and they become close friends.