Historical clue formulations

• Silent movie successor — 2024-09-29
• Walkie-___ — 2021-04-19
• Superseder of a silent — 2020-02-09
• Silent's opposite — 2008-08-30
• "The Jazz Singer," e.g. — 2001-03-18
• Innovation of the late 20's — 1999-08-06
• Silent's successor — 1995-08-22