Four days before the launch of its television networks, the Pac-12 still has not reached agreements with two of the nation's five largest content distributors.

The Pac-12 Networks have been sold to distributors whose reach equals about 48 million homes, though those outside the league footprint won't always offer the network on a sports tier. But satellite giants Dish Network and DirectTV - plus AT&T and Verizon - have not yet agreed to deals.

On Friday, Pac-12 Enterprises president Gary Stevenson said the league is working "day and night" to reach new agreements.

The Pac-12 Networks - one major channel and six regional channels, including Pac-12 Arizona - launch Wednesday at 6 p.m.

"We've had very, very good conversations with the other distributors in trying to find a business deal that works for them and for us," Stevenson said.

The league reached deals with cable providers Time Warner, Comcast, Cox and Bright House Networks last summer. That money helped finance the Pac-12 Networks' creation without the league taking a partner, the way the Big Ten Network did with 51 percent owner Fox.

The Pac-12 has announced agreements with smaller distributors in the past month.

"There's nothing that we've heard that's discouraging from any of (the holdouts)," Stevenson said. "Are we expecting it? We only have 50 percent of the vote."

Extra points

• The league added former ESPN broadcaster Mike Yam as a studio host Friday.

• Stevenson said the networks will add former Pac-12 athletes Kelli Tennant (volleyball), 2012 Olympic gold medal winner Kelley O'Hara (soccer) and former national team member Cobi Jones (soccer) as analysts next week.