Advertising for Dummies: If you don't complain, you get a better deal

 In the 70's, Union 76 oil ran a series of spots with a couple. George is played by comic Dick Yarmy, brother of Don Adams (ex-Get Smart, Tennessee Tuxedo). Yarmy never headlined his own series, unlike Don. Casey Kasem is the announcer at the end.

Here, George assumes that he's paying as much as $50 for some repairs, but gets the shock of his life, after vowing not to complain.