First of all I have to say that I've tried all the options displayed in previous posts in this forum and no one of them is working for me.
I use JW Player for WP and Viper's Video Quicktags for embedding videos on my site. The problem is that videos are not showing on the front page. There's no calling to the_excerpt in the code, I think. I've tried editing functions.php and index.php and no, it's definitely not working.
I'm using Simple Balance Theme, if this helps.