BritBox is the best streamer for all things British television. From mysteries to crime dramas, the streamer is the world's best way to watch the very best Great Britain - and the rest of the United Kingdom - has to offer. August 2025 promises to be BritBox's best month yet, with several high-profile debuts scheduled for later in the month. From the searing drama Happy Valley to the moody suspense series Dublin Murders, these shows are guaranteed to give you a good time - and may send a shiver or two down your spine. Watch With Us has compiled a list of all the new additions to BritBox below.