Awesome Danielo,
That was clear and easy to implement and saved me a lot of head banging.
I wrapped it around my template (nuTube) contents, created a "New Movie" tiddler whose only contents are {{||nuTube}} and 4 fields, which was automagickally picked up by my player as a "tab" and the movie tiddler now renders perfectly.
By combining my template with Skeeve's <$newTiddler/> I'll have a form front end that carries through the intermediate tiddlers until being picked up by the player.
Happy camper here,
-mw