I found out from a librarian friend of mine that the King County Library
[kcls.org] (Washington State/USA) has them in the library.
Of the 17 items, one is a French DVD,
Astérix et Cléopâtre
[Canada] : Lea Films, .
1 videodisc (69 min.) : sd., col. ; 4 3/4 in.
DVD 843 AST FRENCH
One is in Arabic,
Astirīks wa al-minjal al-dhahabī
[Cairo] : Dār al-Ma‘ārif, 
46 p. : chiefly ill. (some col.) ; 29 cm.
J741.5944 GOS ARABIC
One is a video tape,
Asterix vs. Caesar
Woodland Hills, CA : Just for Kids, c1990.
1 videocassette (VHS) (85 min.) : sd., col. ; 1/2 in.
And the rest are British, from Orion.
Actually, I did a better search and found there are a total of 37 items
(I got smart and did a search on author=Goscinny, instead of
subject=asterix). Another French VHS tape and book, and more.
I knew there was a reason I like librarians. ;)
I feel I should make a more substantive comment, so I thought of one.
Several of the books include maps, either local or regional. And they
are easy to understand. Even when a lot is going on. How many other
items of entertainment use as many maps? The information content in
these books is impressive.