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pentaton pentatonix. ♪ ♪ ♪ ♪ ♪ ♪ ♪ ♪ [ applause ] >> pentatonix. thank you, guy, very much.g that can treat anything that ails you. but first, this is "today" on nbc. >>> they say laughter is the best medicine, but in reality, when it comes to treating everything in diabetes to depression it just might be exercise that is the best medicine. the and you had authorize of the new book the exercise cure, a doctor's all natural prescription for better health and longer life is with us. good to see you. we all know exercise is good for us, but you're taking the argument a step further. >> that's right. everybody knows exercise is a good thing to do. the idea of the exercise cure is to take the science of exercise and really teach people this is a medicine. and to add structures that start with looking at things like the brain and all the way down the body, what is the science of exercise and how you at home, however old you are, set up an exercise program for yourself. >> and you're not making the case that the exercise is a cure-all. for example, if you need to be on a certain me

they came by, the group known as pentatonix.back and they sang to us all those beyonce songs in six minutes. we had to buckle our seatbelts. ♪ >> wish you had been there for that talent, the kindness and the happy break in the news day for all of us at "world news." >>> and coming up next right here tonight, talk about an era, barbara walters, two decades worth of fascinating people. can you guess the person she chose as her very first? we'll tell you. know the feeling? copd includes emphysema and chronic bronchitis. spiriva is a once-daily inhaled copd maintenance treatment that helps open my obstructed airways for a full 24 hours. spiriva helps me breathe easier. spiriva handihaler tiotropium bromide inhalation powder does not replace fast-acting inhalers for sudden symptoms. tell your doctor if you have kidney problems, glaucoma, trouble urinating, or an enlarged prostate. these may worsen with spiriva. discuss all medicines you take, even eye drops. stop taking spiriva and seek immediate medical help if your breathing sudden

today on the program, we're going to have pentatonix which has the number one christmas song this yearight ahead, caught on camera. frightening moments in the a bus packed full of kids when the driver falls out of their seat. how some hero teachers stepped up and saved the day. >> like a keanu reeves movie. >>> they fought for our freedom and now being forced to fight for their benefits. captain here with advice for washington and his complimentary cup of coffee. ♪ carry on my wayward son wisest kid, am i forgetting something? no holiday's complete without campbell's green bean casserole. wish you were here. ♪ [ doorbell ] [ gasps ] ♪ [ gong ] [ wisest kid ] m'm! m'm! good! the #1 selling pain reliever, in one cold medicine. advil congestion relief. it delivers a one-two punch at pain and sinus pressure with the power of advil and a nasal decongestant in a single pill. advil congestion relief. in a single pill. before using her new bank of america credit card, which rewards her for responsibly managing her card balance. before receiving $25 tord her balance each quarter for making more