Neighbours complaining about TV volume

[DisneyDreamer2023]

Hello, not sure if this is the right section of the forum to post.

I live in the UK in a top floor flat above one other neighbour.
I have a SamsungQE50Q80B QLED 4K Tv.
I don’t have any surround sound speakers or anything like that, the only volume is coming straight out of the TV speakers
I usually have my volume around 25-30/100
My TV is around 6 inches away from the wall on top of a cabinet that is around 18 inches high.

I work 9-5 Mon-Sat but by the time I travel home and then eat and shower and get chores done etc I’m usually ready to chill with a film around 7:30-8pm the latest.

My new neighbours are saying they can hear my TV and it’s keeping them awake as they go to bed early and they are threatening to report me for watching TV at night and keeping them awake.

Any solutions? I didn’t think volume from just tv speakers that’s positioned on a tall cabinet away from the walls would create that much noise! I would have understood if I had surround sound.

It would suck if the only time I can watch and enjoy a Blu-ray would be once a week on a Sunday daytime! I have a backlog to get through! Haha.