Table:
text: Fox Television Stations
Stations
Stations
City_of_license_Market Station Channel_TV_DT_ Owned_since Primary_affiliation
Dallas – Fort Worth KDFW ++ 4 (35) 1997 Fox
Dallas – Fort Worth KDFI 27 (36) 1998 MyNetworkTV
Houston KRIV ** 26 (26) 1986 Fox

Question: Considering fox tv channels which channel has station kdfw++ ?