Call letters question

[Doug Drown]

A "just curious" question, offered by way of example:  Stations WQQQ and WQQQ-TV are co-owned.  The owners decide to sell off the radio station, which subsequently surrenders its "historic" calls.  Some time later, the station is sold again, and the new owners want the WQQQ call letters back.  Can it apply for them, if the owners of the television station give permission?   -Doug