Historical clue formulations

• Cable co. that was purchased by AT&T in 1999 — 2026-01-25
• Onetime cable giant acquired by AT&T in 1999 — 2022-02-11
• Cable co. acquired by AT&T in 1999 — 2015-04-08
• Cable co. that merged with AT&T — 2002-12-20
• Cable company that merged with AT&T — 2001-06-22
• Big inits. in cable — 2000-09-01
• Cable giant, for short — 2000-05-31
• Cable TV giant — 1997-02-08