In that case, I guess I'll just go with a Perl script that
creates a URL list from the pages already downloaded.

The comments portion will always be missing the most recent
batch of episodes but at least it will be archived.

Script Function:
- Find ARCHIVE_DIR\(*).html
- Make list comprising of URLS where each URL is
<http://addventure.bast-enterprises.de/display_comment.php?episode=($1)&n=0>
with ($1) being replaced by a value from (*). 

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ACTUAL QUESTION BEGINS HERE:
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Will the URL list override the manually entered URLs or will
it augment them?