The criticism was revealed in research called 'Disabling Prejudice', which examines attitudes toward disabled people and how they are represented on TV.
It was commissioned by the BBC, the Broadcasting Standards Commission and the Independent Television Commission.
The ad showed a Burger King employee learning sign language so she can communicate with customers from a nearby deaf centre. However, the ad did not include subtitles, which excluded many deaf people, and was criticised for being tokenistic.
Conversely, a Freeserve ad from 2000 which featured model and Paralympian Aimee Mullins, who has had both her lower legs amputated, was praised by viewers for its positive image in linking disability with freedom and beauty.
Of the survey of 4000 viewers, 65% said they would not be put off buying a product if a disabled person was featured in its advertising.
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