Yoga for complete beginners.
This 20 minute YouTube video provides an introduction to Yoga through a 20 minute ‘home Yoga workout’
https://www.youtube.com/watch?v=v7AYKMP6rOE
Pilates
This short video shows one of the earliest Pilates classes ever and provides a fascinating glimpse into the origins of the discipline: https://www.youtube.com/watch?v=-DG52tULsO8
Pilates Anytime is offering one month's free trial of their online courses: http://www.pilatesanytime.com