Lifehacker Roundup

Facts you need to know before buying an HDTV
“…six must-know facts about HDTVs, which he says most people don’t use properly.”

Find service bulletins for your car
“The author explains what TSBs are (a notification from the manufacturer about a known problem that doesn’t qualify as a full recall), how to find them, how to interpret them and, perhaps most importantly, how to leverage them with your sneaky no-good dealer.”

Surf safely on public networks
“…four tips on keeping your PC secure while it’s connected to a wi-fi hotspot. For example, turn off file and print sharing:”

How to encrypt your VoIP
“…several ways you can go about encrypting your Voice over IP phone calls so that a third party sniffer can’t record your phone conversations.”