Tech & Full Dress Rehearsal
A Technical Rehearsal is where all aspects of a production run together to see how the production looks. It is where timings need to be checked for access to props, costume changes, scene changes, lighting, sound, video cues, special effects. A prompt is needed as the actors dialogue is only top and tailed to check cues.
A Full Dress Rehearsal is where the full show is run to check all aspects of the production and may have a standard interval time to check total running time.