Here's an idea to try.
Edit (with Notepad) your original script file, the one that Avisynth could read. Type the abbreviated script into that file (deleting all the previous text) and save it. Then try to view it in your media player again.
That should work ... :)
The demonstration of transferring color from colorized standard definition media to B&W high definition media, which I started, in part, on page 3, has been completely re-edited and now contains the full tutorial.
Read "COLOR TRANSFER BETWEEN MEDIA" on this page 3 post.
Enjoy!
And now excuse me while I go lay down ... 
@ larkofam
Just thought I'd check back and find out how you fared with those Avisynth problem(s).
I know it’s been 10 years since this post, but I’ve been looking for Christmas in Connecticut colorized. Where how can I get it?