This article is from the Digital Broadcast Satellites FAQ, by Brian Trosko email@example.com with numerous contributions by others.
Strangely, no. The Sci-Fi Network is available, but
that network doesn't carry either show. Current Star Trek
series and Babylon 5 are syndicated and typically show up
on local affiliates, which you can't get over DSS.
Dish Network has recently added a UPN affiliate, which does
show _Star Trek: Voyager_. Additionally, Dish Network has WB afilliates
which show _Babylon 5_, _Deep Space Nine_, and _ST:TNG_.