Remote control my android
Many recent TV devices ship with DLNA support. If yours does, you could turn your tablet into an UPnP server using an app like e.g. BubbleUPnP. Once that app is up and running, it serves the tablet's contents to your TV. Your TV detects accesses this service, and you can control it using the TV's remote control:


  BubbleUPnP is a full featured UPnP/DLNA Control Point, UPnP Media Renderer and UPnP Media Server. Play easily your music, videos and images on your phone and devices on your network (DLNA TVs, XBMC, WMP, ...), from your external UPnP Media Servers. Play your phone/tablet media to those devices.
  Browse and play your local phone/tablet and cloud media from other devices [...]


So basically, this works both directions -- and you can even use this app to browse contents of your other UPnP sources on the tablet itself.