Problem: I can't suck enough air because I screwed up on the
installation.

Please don't tell me I need to rip out the flexi and replace it with
6" metal ducting or whatever. It ain't gonna happen.

Help??

Funny. I like the "ain't going to happen" thing. Dime to a dollar you are
in upper management.

Here's an idea: disassemble an A/C unit and pipe the condensor next to the
projection TV to absorb its heat.