How to say “Don't change the channel, they're about to announce the result!” in Japanese

In Japanese

待(ま)って、チャンネルを変(か)えないで！もうすぐ結果(けっか)が発表(はっぴょう)されるんだから！

Matte, channeru o kaenai de! Mō sugu kekka ga happyō sareru n da kara!