Stations were required to report to the FCC their transition plans by March 17; the FCC has released the list of stations with their transition plans.
Stations keeping analog until June 12, 2009 - http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-589A2.pdf
Stations transitioning to digital before June 12, 2009 - http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-589A3.pdf
All plans to transition prior to June 12 are subject to FCC review and approval.
Stations keeping analog until June 12, 2009 - http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-589A2.pdf
Stations transitioning to digital before June 12, 2009 - http://hraunfoss.fcc.gov/edocs_public/attachmatch/DA-09-589A3.pdf
All plans to transition prior to June 12 are subject to FCC review and approval.