All we need is an internet connection to gain access to high-quality and often free workout programs, complete with high-energy motivational coaches, such as Jillian Michaels and Cassey Ho. Streaming workout videos on YouTube and Hulu fitness channels are available with the click of a mouse, Chromecast, Roku, or Apple TV remote. Today, there are compelling alternatives to viewing a fitness program on a DVD with a TV. Betamax gave way to VHS, then DVDs took over, and new HD and Blue-ray formats followed.

From Jane Fonda to Gilad Janklowicz to Tony Horton, workout programs viewed on home televisions have been huge hits and have motivated millions to exercise in the comfort of their own living rooms. Just as the music industry has been massively disrupted over the last 20 years by technology, the fitness video industry is being disrupted today. Digital music is here to stay and the idea that we need a physical album of any kind in order to listen to our tunes is gone for good. I later hopped on the Pandora bandwagon, and then subscribed to Spotify. After some hemming and hawing, I bought one and joined the iTunes legion. A few years later, Apple released the iPod. I was the last of my group of friends to make the jump to CDs.

By college, I had graduated to listening to music solely on a cassette player. I fondly remember listening to my dad's Beatles vinyl of Revolver - which had such classics as Eleanor Rigby, Tax Man, Yellow Submarine, and Good Day Sunshine, as well as the lesser-known but nonetheless moving song For No One. Its features included an AM/FM digital display radio, a double cassette player, and a record player. In junior high school, I bought what seemed at the time to be the most advanced stereo known to man.

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