EXCLUSIVE: Kevin Wade, executive producer/showrunner of Blue Bloods, has signed an overall deal with CBS TV Studios, the studio behind the CBS drama. Under the pact, Wade will stay at the helm of the Tom Selleck-starring procedural, which is heading into its fourth season. Wade joined the series midway through its freshman season and has been showrunner for the past year and a half. While older skewing, Blue Bloods is a major audience draw. It is Friday’s most watched program, averaging 13.3 million viewers this past season, up 8% over the 2011-12 season. Despite airing on the lower-trafficked Friday night, Blue Bloods ranks No.4 among all primetime dramas in total viewers, behind only CBS’ NCIS, NCIS: Los Angeles and Person Of Interest. Wade, repped by ICM Partners and attorneys Bob Getman and Alan Wertheimer, also created and exec produced the ABC dramedy Cashmere Mafia and previously wrote the features Working Girl and True Colors and co-wrote Maid In Manhattan and Junior.