Lloyd Thaxton was indeed sydicated since I remember seeing it in the listings for Baltimore's WBAL channel 11 in those days.
Back on topic for some odd reason I can remember seeing Joe Garagiola hosting a game show. Don't know what the show was about but I remember Joe. This had to been around 1971 maybe 1972.
Was it Sale Of The Century? i remember Jim Perry hosting that in the 80s on NBC, but didn't Joe G. do that show in the 70s?