. >>> then, todd eldridge will be here. he's at the rink warming up. a beatles classic. tell us about his nbc skating special. we can't wait for that. >>> but first, we have another skater in the house. apolo anton own know is here, eight-time olympic medalist in short track speed indicating. i couldn't believe this. you're running the new york city marathon. >> i was challenged to run it by subway, and i've never done this. >> have you ever done a marathon? >> my first marathon ever. the kicker is, if i finish under four hours, subway will donate $25,200 towards the special olympics. it's xiemed. thousands of people. >> and this isn't the kind of thing that you you go out and you run a couple miles and you're ready for the marathon. i'm sure there's a huge difference. >> completely different. the most common misconception is people say, apollo, you're an almost athlete. this should be easy for you. i spent over 15 years of my life preparing for a race that literally is 45 seconds long and i'm on skates. >> 40 seconds of a race and there will be apolo.