Just a month after Dolby and SRS Labs teamed up to deliver surround sound to mobiles, along comes word that Dolby has finally updated its PC Entertainment Experience program. The initiative was originally launched four years ago, and now, both the second-generation Dolby Home Theater and Sound Room are getting a little TLC. As for the former -- which aims to provide certified HTPCs with "tools to deliver a cinema-style experience in vivid surround sound" -- it's getting Sound Space Expander, a Natural Bass enhancer and Dolby Pro Logic IIx support among other things. The new iteration of Sound Room (which aims to help out in non-surround environments) offers up many of the same technologies mentioned above, save for the 7.1 support and all. Hit up the read link for more, and be on the lookout for those two badges to get stuck to Dolby-approved gear in the near future.