Byline: CHRISTEN DEMING Staff writer
The term motormouth usually applies to the guy at the end of the bar with endless opinions on every topic. But Colin Quinn's motormouth is the sort of mechanism you might find in a high-end sports car: He delivers the killer punch line in less time than it takes a Porsche to go from zero to 60.
You might find Quinn in a bar every now and then -- or, this weekend, at Saratoga Race Course -- but these days you'll also find him sharing a time slot with Charlie Rose and Ted Koppel: Quinn hosts Comedy Central's topical chatfest ``Tough Crowd'' (11:30 p.m. Monday through Thursday), in which stand-ups and assorted guests crack wise about the news of the day.
Quinn, a Brooklyn native who first came to prominence as the mordant second-banana on MTV's mock game show ``Remote Control'' before joining the cast of ``Saturday Night Live,'' brings his stand-up act to Saratoga Springs at 8 …