DLNA (Digital Living Network Alliance) - definition
DLNA is a connectivity where a stable connection can be set up among several devices around the host using home WLAN. For example: A user can get access of the files from a computer if DLNA is set up on the computer. Not only TV, but also media players, mobile phone and other appliances can be connected as well and share files. In another example it can be said, you can get access of a media files from TV when it is stored in your mobile device.