Some newer TVs, PCs and smart-phones support Miracast, a technology that allows you to wirelessly display your little screen on a big screen. I recently successfully used my HTC One (M8) smart-phone (picture below) and a Windows 7 PC, using a Sharp Aquos TV as the target display. The HTC was easy, just swiping three fingers up from the bottom of the display. Windows 7 required loading the manufacturer's WiDi driver, but easy thereafter.
Working Without Wires, the techie's dream.