Yes she still owns it... not sure how she's paying to keep it on the air [I never hear businesses mentioned on air like most non coms and I never hear "beg-a-thons" unless all the "preaching" shows aired during the day on it are preachers "underwriting" their time on air... not sure if she ever will sell it since it was his dream to have that station on air.
Those shows have to be brokered.
If that's the case, she's likely in no hurry to sell it, being able to keep Robb's dream going easily, financially...