It sure is known here, I did bump into some DVDs at shopping centre half year ago, I remember, that I saw sometimes VHS of LBT about 15 years ago. I even remember, that one day in radio show, the radio host said, that his son likes movies with "Nožička", and it was immediately clear to me, that it was LBT. That was perhaps in 2006.
Old dub:
Littlefoot- Nožička
Cera- Sára
Petrie- Pírko
Ducky- Zobka
Spike- Bodlina
Chomper- Chrupka
As a matter of interest, I remember, that in this dub movies until LBT VIII, in old dub, Littlefoot is SHE, not he. It was certainly the case of LBT VI,VII, VIII, presumably also I-V, but I cannot remember these in Czech clearly now.
There is also a new dub of movies, which I did not see, so I won't write more.