April 1st, 2006 - 5AM Eastern, Turner Classic Movies will show 'Chaplin at Keystone Studios'.
April 22, 2006 - 3:30 AM Eastern, 'Limelight'
See this LINK for times or check TCM March and April schedule. The Keystone films are the last films listed for the month of March. (note: TCM day runs 24 hours from 6AM to 6AM eastern time.)