 Mark Levin. The Mark Levin Show. Weekdays from 4 to 7 p.m. on KSVC. It has been so hot, and Big O Tires wants to make sure that you're staying cool all summer long. Get $10 off any AC service now through July 31st at Big O Tires. And the Stars, Stripes, and Savings Sale is going on now at Big O Tires. Save up to $120 on select sets of in-stock tires now through July 7th.