If you find your electric bill has skyrocketed this summer, your air conditioner may not be the only culprit. The Los Angeles Times reports that cable set-top boxes are now consume more power in our homes than any other household appliance other than air conditioners. The reason for this is that set-top boxes are using almost as much power when they’re supposedly shut off as when they’re turned on while you’re watching TV. “A set-top cable box with a digital recorder can consume as much as 35 watts of power, costing about $8 a month for a typical Southern California consumer,” The L.A. Times writes. “The devices use nearly as much power turned off as they do when they are