Historical clue formulations

• "Time ___" (bygone sci-fi series) — 2018-08-16
• "Time ___" (bygone sci-fi series) — 2013-11-10
• "Time ___" (1990s sci-fi series) — 2010-08-29
• "Time ___" (bygone sci-fi series) — 2008-11-13
• "Time ___," 1990's sci-fi TV series — 2005-02-21
• "Time ___" (old sci-fi series) — 2004-07-25