According to my PR source, this week's Time Machine is supposed to be a trip through time with shows from all four decades represented on Buzzr-- WML from the 50s, TTTT and IGAS from the 60s, LMAD from the 70s and PYL from the 80s.
Next week's is all 80s-- Family Feud from 1980, Body Language from 1984 and Press Your Luck from 1983.