When searching for land before time in different languages on youtube you must be aware that the title varies and is not always translated literally into the other language. For example to get land before time videos in German you would have to search for "In einem Land vor unserer Zeit". I think we have a thread somewhere with the title of the land before time in many different languages.
Here's a video of the italian opening of the tv series:Alla ricerca bella valle incantata
Sounds interesting, having the same voices for nearly all the sequels instead of the the changing voice actors at very quick speeds.