All* rooms with capacties of 21 or over are eqipped with 16:9 HDMI projection. The standard resolution is 720p. This is to ensure that text is still readable at the back of the room.
Smaller rooms are similarly equipped after refurbishment; until refurbishment they are equipped with 4:3 VGA projection or flat panels.
* except Dome Lecture Theatre (Aston Webb A Block), and Physics West rooms 106 and 115