A few things, off the top:

• I'm skeptical as to whether this will work as written. Yes, you have a use strict; at the top, but you don't seem to be my'ing most of your variables.
• Check the return value of your open call. You're assuming the open succeeded, while it may be failing because of permissions or file not found problems.
• I'm not a regular HTML::Template user, but as a general rule, putting a use HTML::Template; at the top will probably make the last few lines happier.
• @video needs to be chomp'd, otherwise both your keys and values will have endlines on them. I'm assuming that the file in question has alternating key/value lines, otherwise you'll need to munge @video into a usable form.
• You go through all of the trouble of getting the title, but never pass it to the template. You might want to make the call to $template->param() look like:

  $template->param(TITLE=>$Title,
                   @video);
  [download]

  On a similar note, you can skip the @Words array entirely by saying: ($Title = $Name) =~ tr/_/ /;
• By blindly passing the contents of a form parameter to open, you could be opening yourself up to a big security hole. You might want to do some validation on $value before you start blindly opening it.

Update: My list grew from being "two points" to "three" to "fiv -- aww, heck, a few" as I glanced at the code.

perl -pe '"I lo*`+$^X$\"$]!$/"=~m%(.*)%s;$_=$1;y^+*`^ ve^#$&V"+@( NO CARRIER'