OK, football junkie, determined to mainline the NFL: Let's do some math. You want the flagship DirecTV package? Slide 300 little helmets to one side of your abacus. Oh, you say you also like baseball, the NBA and eating at regular intervals? Then you need a sports bar. And not some lie-low dive with a dartboard and a few TVs. You need a bustling hot spot that makes you feel as though you're in a beer commercial — a happy, high-fiving, hot-chicks-love-sports-too beer commercial. A place with an Orwellian array of monitors and competitive weekday specials on food and booze. A place that pays for every last byte of satellite sports data so you can cover your bills on time. You're going to 810 Zone on the Plaza, where you rub elbows with the other diehards without having to watch anyone else's big game. Other 810s are in Leawood and at Harrah's Casino, but the people-watching is best — and the team partisanship most varied — closest to the state line.