Foreign news is held up a few minutes to allow anything controversial to be blanked out.
You used to see it from time to time when 1MDB came up on the BBC or SKY

Centralised antenna system (MATV) must be upgraded to support/receive digital TV signals due to technical reasons. Otherwise you won't receive any signal at all.
Malaysia's analogue TV broadcasts has been switched off end of last year, so it's no more already.

Or else, you'll have to use your own UHF antenna.

You can consider get antenna models like this, which is known to be pretty good:
https://shopee.com.my/Digital-Antenna-UHF-H...38079.313253815
https://shopee.com.my/VT333-MR-U805OD-UHF-H...8079.1369423471
https://shopee.com.my/MYTV-TD-5E-ANTENNA-TV...99971.941931668
Since the antenna is small in size, basically you can just place it anywhere near the TV as long you get a good reception, so not necessary must put outside of your house or something (depends on location too).

Or, you want to buy an outdoor one also ok:
https://shopee.com.my/ME-Uhf-HDTV-Outdoor-D...38079.435769904

As for the cable, please use RG-6 cable instead of 3C-2V or 5C-2V cable, for a better overall cable performance = better signal reception.
RG-6 coaxial cable is the same cable type used in satellite TV, such as Astro.

Centralized antenna system (MATV) in my apartment OUG Parklane, Taman OUG only able to receive RTM Bernama but can't receive any channel from Media Prima ntv7 8tv tv 9
May I know what is the fault? Thank you

I believe you've tried Auto Search the channels, right?
If you use your centralised antenna and you experience this, inform your building management about this.

If your building management isn't helping, then consider buy own UHF antenna to get things done on your own.

RG6 cable is the one with screw connecter correct? Does it fit perfectly in the STB or need another converter. Because my current cable just plug and play no screw.

Yes full search, the problem my unit is block by another block

Centralized antenna system (MATV) in my apartment OUG Parklane, Taman OUG only able to receive RTM Bernama but can't receive any channel from Media Prima ntv7 8tv tv 9
May I know what is the fault? Thank you

I've tried with my friend's TV in Metro Prima (apartment) with a cheap antenna from Mr DIY, I think within RM6. It has magnetic based so you can attach to the window and voila all channels appeared.

I've tried with my friend's TV in Metro Prima (apartment) with a cheap antenna from Mr DIY, I think within RM6. It has magnetic based so you can attach to the window and voila all channels appeared.

Tested I have signal strength very low due to block by another block

It's really depends on your location and obstacles around your area, and also the antenna type too.
So it is a very subjective and case to case basis.

Never try, never know