Pat Sajak used to be WASTED on "Wheel of Fortune" back in the 80s -- this according to the game show host himself.
Pat made the confession during an interview with Dan Le Batard -- claiming in the old days, he would down "two, three, or six" margaritas at a Mexican joint near NBC studios during the show's 2-hour dinner break ... before heading back to finish taping.
According to Pat, Vanna was also guilty of drinking on the job -- but they've since stopped the mid-show imbibing tradition.
Pat added, they were so drunk ... they would often "have trouble recognizing the alphabet."
I Was Drunk
on 'Wheel of Fortune'
1/26/2012 6:45 AM PST BY TMZ STAFF
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