1080P Render Settings

Open the render settings. | Render > Edit Render Settings...
Change the output preset to HDTV 1080 29.97 | Render Settings > Output > Preset Triangle > Film/Video > HDTV 1080 29.97
Change the Frame Range to "All Frames" | Render Settings > Output > Frame Range = "All Frames"
Adjust the Save... path. | Render Settings > Save > File...
Turn on Alpha Channel | Render Settings > Save > Alpha Channel
Set AA to best. | Render Settings > Anti-Aliasing > Anti-Aliasing = "Best"
Change the AA Filter to "Gauss (Animation)" | Render Settings > Anti-Aliasing > Filter > "Gauss (Animation)"

To render...