I also subscribe to the obvious point that all these advanced civilizations are avoiding us mostly because theyve been getting 70 years of "I Love Lucy" and "Benny Hill"
What the hell was the name of the movie where aliens spoke in dialects using commercial punch lines?
Theyd been tapping into our TV signals an used phrases like
"WHAT WOULD YOU PAY FOR THESE ...??"
or
"IT MAKES MY BREATH MINTY FRESH..."