One of PlayOn’s perennial dings has been the lack of high definition streaming. But, starting this month, both new and existing customers can upgrade from 480p to 720p… at a cost – both in terms of fees and required quad core processing capabilities. As a refresher, PlayOn lives on your home PC (sorry Mac owners) and relays web video to mobile devices and set-tops around your house (using native DLNA capabilities or dedicated PlayOn apps like this Roku one). While its companion product, PlayLater, is your web DVR – enabling you to record and offload video from the likes Netflix or Hulu. Looks like the going rate for new customers is $70 for both PlayOn and PlayLater, with HD capabilities and without messing with a monthly subscription – although that may be worth a gander before fully committing.