NEW YORK (AP) — The opening weekend of the NCAA Tournament drew the highest ratings in 22 years for CBS Sports and Turner Sports.

The networks announced Monday that the weekend’s third-round coverage of the NCAA Tournament across TBS, CBS, TNT and truTV delivered a 7.3/16 overnight rating/share. That’s a 7 percent increase from last year.

The four days of the men’s tournament through Sunday also had the highest overnight ratings for CBS Sports and Turner Sports, averaging a 6.7/14 overnight rating/share.

Those numbers are the best since the tournament expanded to its current television format in 1991. The overnight rating increased 6 percent from 2014.