Practice a pitch routine with some item you already own. Learn as much as you can about the product, then write a dialogue that "sells" the positive aspects of the product. Watch current QVC hosts, and work some of their descriptive words into the dialogue.
Practice the dialogue in front of a mirror. Smile and look positive as you explain how important it is for the listener to buy that product. Get the dialogue down to between 3 and 5 minutes long.
Dress the part. QVC hosts always look put together, but not overdone. Women should wear a tasteful dress or pantsuit and not too much makeup. Men should wear either a business suit, or dress in a business casual style.
Tape yourself giving the dialogue in appropriate clothing. Show the product in the tape.
Send a DVD copy of the audition performance, a resume, and a recent head and shoulders photo to the show's human resources division. As of 2011, the QVC address was QVC Studio Park; Attention Mail Code 888, Human Resources; 1200 Wilson Drive; West Chester, Pennsylvania 19380. Allow eight weeks for the show to review the tape and contact you about any interest it may have.