This might be true, you know.

Many means some were filmed not on earth?

As for all the winning today in America

indeed!

Why would the show build a spaceship that probably cost like ninety hundred dollars and not fly it to other planets to film? I don't believe this post.

Except voyager, they where over budget, because it was filmed in the delta quadrant

Thats what they want you to think!!!

Also to speed up filming, they used teleporters instead of space shuttles for ground missions, as it would have delayed the production largely if they needed to keep getting back and forth with shuttles, sometimes multiple trips for actors + camera crew.

And to keep the unions happy, on this location specifically (Has to do with a certain radius around filmstudios and labour laws)

Behind the scene with real Earth people...

That's the one where they were going to execute Wesley because he crushed a flower box.