He received the Magician of the Year Award in 1979 and 1985. He appeared as a guest on The Tonight Show, Donahue, The Today Show, and The Super Mario Bros. Super Show. His performances were also a regular feature in the Square One Television series on PBS.
As an infant, he was used in his father's act. Rather than utilize the routines his father developed, Blackstone developed his own and modernized his performance, though onstage he would on occasion perform a sequence of his father's illusions in a period setting
He famously performed during the half-time show at the 1987 Orange Bowl, in which many parts of the act went horribly wrong. Four of the five tricks Blackstone performed failed due to missed cues and poorly designed props.
In 1985, on the 100th anniversary of his father's birth, Harry Blackstone, Jr. donated to the Smithsonian Institution in Washington D.C. the original floating light bulb - Thomas Edison designed and built it - and the original Casadega Cabinet, used in the "Dancing Handkerchief" illusion. This was the first ever donation accepted by the Smithsonian in the field of magic.
Harry Blackstone, Jr. created four magic kits, from beginner to advanced, which were the best selling of all time, and which have enthralled a new generation of illusionists.
After his passing, much of his performance equipment was sold off in a highly publicized internet auction. Many of the pieces went to collector's, scattered across the world and numerous of the props have made it into actual shows. Las Vegas performer, Scarlett now owns and uses his Topsy Turvy. Touring illusionist, Aaron Balcom now uses the Owen-built Clown Jammer. Washington state performer, John Walton uses his menacing Buzz Saw.
He coauthored three books, namely:
He also re-edited his father's Blackstone's Secrets of Magic. Paperback ISBN 087980260X ISBN 978-0879802608