was it presented live?
Yes,  ABC announced that it planned to air "The Wonderful World of Disney: The Little Mermaid Live"
The Little Mermaid (1989 film)
On May 16, 2017, ABC announced that it planned to air "The Wonderful World of Disney: The Little Mermaid Live", on October 3, 2017, which would have featured a broadcast of the film with a similar format to the aforementioned Hollywood Bowl concerts. 
who played prince eric in the little mermaid Christopher Daniel Barnes what is the genre of this film? Animation, music, fantasy
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The Little Mermaid (1989 film) [SEP] "The Little Mermaid Live!"
On May 16, 2017, ABC announced that it planned to air "The Wonderful World of Disney: The Little Mermaid Live", on October 3, 2017, which would have featured a broadcast of the film with a similar format to the aforementioned Hollywood Bowl concerts. The special aimed to appeal to the recent trend of live made-for-TV productions of Broadway musicals on network television, such as those of NBC. However, on August 3, 2017, it was announced that the special had been dropped due to budget issues. On August 5, 2019, it was announced that the project had been revived to mark the 30th anniversary of the film's original release, and would be aired on November 5, 2019.