LOS ANGELES (AP) — AMC television is advertising the good news for "Mad Men" — the 1960's Madison Avenue drama will return for a fourth season.

The TV series debuted as a low-rated, critical darling but has seen its audience grow at the start of its third season.

The early renewal lets viewers know the retro saga will continue next year, AMC said on Tuesday in announcing its decision.

"Mad Men," which last year drew fewer than two million viewers per episode, attracted an audience of 2.8 million for the August 16 season premiere. The series has registered an impact beyond its numbers. The reigning best-drama Emmy winner is up for the honor again at the September 20 awards ceremony, and its period fashions have been cited as an influence by designers.