This is a Sending Video Frames Filled icon. We've made it in iOS style, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 12,800 icons, all in the same style and quality.
It's a logo of a flat screen tv in the background sitting on a base. In front of it covering much of it up is a rectangle with its top missing looking like videotape with the dark dots on the edges and an arrow in middle pointing down.