Mr Been（憨豆先生）is a very_______(好玩的）comedy.

Mr Been（憨豆先生）is a very_______(好玩的）comedy.
Mr Been（憨豆先生）is a very_______(好玩的）comedy.

Mr Been（憨豆先生）is a very_______(好玩的）comedy.
funny

interesting 或者funny都行
不过建议使用interesting来形容COMEDY
funny一般用来形容人或事