It's not really hacking if you aren't pulling out all the stops, is it? IOW, there's no such thing as "cheating" when it comes to hacking.
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I'd suggest getting one of the bigger certifications, like a CCNA. My CCNA is lapsed, and has been for a decade now, but I put "former CCNA" on my resume, and it seems to trigger whatever resume-scanning apps the larger corporations are using. I've done IT for some small shops, where it was a matter of knowing someone who knew someone, and some larger shops, where it's a matter of the software triggering on "CCNA" and handing it off to a live person. And once the recruiter comes calling with phone and in-person interview opportunities, it's what you know, not how formal a setting you learned it in.
How about you actually TRY the app? If it's good, go ahead an give it a favorable review, but include full disclosure that you're an employee. That way there is no question of whether you're astroturfing or not.
I've tried A LOT of PVR software over the years, and MythTV (via Mythbuntu) is what I'm currently using. That said, if you're looking for a Windows solution to run under XP, I found GB-PVR to be about an excellent choice. There are a ton of plugins available as well, so I'd say it is at least as full-featured as MythTV. If you insist on running Windows on your PVR, you could do much worse.
*disclaimer* I've not tried Media Center under Windows 7. I did try it under Vista and found it somewhat lacking.