when going through Halo 1 Anniversary i was going for the terminals and most of them wouldnt open(halo channel didnt launch),but i got the achevements for press x on the terminals.
in Halo 2 Anniversary after gettting terminal 8 on Sacred Icon,it finished playing and then my game froze and then crashed after not responding,not sure if that can happen with other terminals but it happened after watching terminal 8