"Scott Cole: Discover Tai Chi for Balance and Mobility" and "Tai Chi for Seniors" by Mark Johnson are some Tai Chi videos available for purchase on DVD. Some state and federal health agencies have free Tai Chi videos available for viewing online at sites such as NCCIH.NIH.gov and Co.Kenosha.wi.us.
Scott Cole has several DVD titles available at his website and on Amazon.com. Some focus primarily on seniors while others deal with exercises for desired effects, such as back care, fitness and weight loss.
Mark Johnson is a senior teaching Tai Chi for seniors. His DVD training courses are offered at TaiChiForSeniorsVideo.com, and they are not available in stores. It lists Mr. Johnson with over 45 years of teaching and over 700,000 videos sold, as of 2015.
The U.S. Department of Health and Human Services' National Institute of Health has a five-part series "Tai Chi and Qi Gong for Health and Well-Being" video that users can download for use on their computers and portable media players.
Kenosha County, Wisconsin's Aging and Disability Resource Center has a 15-part series designed to help seniors strengthen areas that may help reduce falls. The instruction videos are hosted by Rich Marantz, who is a certified Tai Chi and Qi Gong instructor and a certified external-qi healer.