In the case of this Panasonic TV, the manuals are available for download from the Panasonic site. However, since my version of this TV has already had 3 software updates in the six months that I've had it, how practical is it for me to check, and how often should I check ? And, of course, this particular TV will only update itself if it is connected to a network with internet access, and some buyers may not bother to do so. To be honest, the software updates to this TV have only been made to add functionality, which are fairly obvious to the user.