Answer:

replays

AnswerCrossword Clue
REPLAYSThese can be instant
REPLAYSSportscast staples
REPLAYSTV instant events
REPLAYSShows in slo-mo, e.g.
REPLAYSGood things about sports on TV
REPLAYSDo-overs
REPLAYSGrid refs' aids