Moyer, who has worked with ESPN, interviewed two weeks ago. Stairs, who has worked with NESN, interviewed late last week.
It is unclear how a Moyer-Stairs combination would work, if the network reaches agreements with both. They could share time in the booth like Wheeler and Matthews (Wheeler broadcast six innings, while Matthews broadcast three), they could split games, or they could both be in the booth at the same time with McCarthy.
Comcast also had Mitch Williams, Mickey Morandini and Kevin Stocker among its finalists.
An official announcement could come as early as the end of the week. Comcast broadcasts its first Grapefruit League game from Bright House Field in Clearwater, Fla., on Feb. 26.
Todd Zolecki is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.