Wikipedia doesn't lie
https://en.m.wikipedia.org/wiki/TV_Sarawak

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

Malaysia Digital TV Bitrate Check
6 Feb 2021

MUX 1: 666MHz (Channel 45)
   
Video bitrate:
HD = 4.1Mbps
SD = 2.1Mbps
Audio bitrate for TV & radio channels: HE-AAC v2 32kbps Stereo

MUX 2: 650MHz (Channel 43)
   
Video bitrate:
HD = 3.65Mbps (CBR 3.5Mbps, according to MediaInfo)
SD = 2.1Mbps

Audio bitrate for RTM TV channels: HE-AAC 48kbps Stereo
Audio bitrate for RTM radio channels: HE-AAC 112kbps Stereo

SOFTWARE UPGRADING WORKS FOR MYTV COMBO DECODER
For information, MYTV will be conducting software upgrading works for MYTV combo decoder in stages from 8 February 2021 to 26 February 2021 from 1.00 am – 4.00 am.
We urge you to put your combo decoders on ‘standby mode’ during this activity. If you encounter any interruption, please contact MYTV Careline at 1300-10-6988.
We apologies for any inconvenience caused.



Source: https://www.mytvbroadcasting.my/notice/Noti...022021.docx.pdf

For Astro's MPEG4 HD channels (as well as Astro AOD 351-355):
64kbps HE-AAC Stereo
384kbps Dolby AC3 5.1

Astro UHD channel, they use 224-256kbps Dolby E-AC3 5.1 audio.

For MPEG2 SD channels, they use 192-256kbps MP2 Stereo.

Yes, 64kbps HE-AAC audio quality is a crap to me also (as an audiophile perspective). For me, I suggest at least 128kbps AAC-LC. If insist of using HE-AAC, then I'll suggest 96kbps HE-AAC.

Well I'd expect mytv to have an update file available for usb update alongside the usual ota update, this way, if you miss ota update, you can still update via usb......

ps: What does the update change for the affected boxes?

Hmm, we could expect another bitrate check from joshhd then?

4Mbps is pretty much their standard for its HD channel. 

MUX 1 : Enough bitrate for with some extra radio stations + just 1 extra SD channel/1 channel to be convert into HD

I have a strong feeling that Astro uses Statistical Multiplex method (also known as statmux) for encoding its video tracks (TV channels).

What is statistical multiplexing (statmux)?
Statmux is a technology that allocates bits in real time among multiple live video channels, combining the encoded outputs into a multiplexed program transport stream.
Statmux instantaneously adjusts the bitrate of each channel in the statmux pool to make the best use of total available bandwidth.
This maximizes network efficiency by optimizing picture quality for a group of channels within a fixed total bandwidth.
  Just self-imagine that the "HD HEVC" shown on the animation is "HD AVC (H.264)"
Animation source: https://aws.amazon.com/medialive/features/statmux/

Statmux refers to the video bitrate that not just automatically fluctuate/spike into higher or lower bitrate depending on the movement or changes of the particular video scene (like variable bitrate), but it also influences with other channels within the same mux or transponder. Therefore, there is no fixed video bitrate for Astro.
It's like, let's say if the channel now doesn't have much movement, it could go between 500kbps or 3Mbps, but when there is movement or fast movement, it could fluctuate between 3-6Mbps or over 6-8Mbps.
Unlike MYTV Broadcasting, their bitrates are almost or indeed constant. If they set 4Mbps for HD channels, then it'll be 4Mbps all the way, and doesn't fluctuate at all regardless of scene changes whatsoever.
So there is no "fixed" and definite answer to your question And I would say it will be unfair to directly compare with Astro and MYTV, because the way they deal with the bitrate encoding are different, and both has its pros and cons.

You can follow this dedicated thread for Astro, and read more here:
https://forum.lowyat.net/index.php?showtopi...post&p=97975099
https://forum.lowyat.net/index.php?showtopi...post&p=97975683
I'm sure MYTV have its "spare" muxes on its transmitter sites. 

In your opinion, which one is more costly in terms of overall?

Operate more mux
- Existing viewers will get to enjoy more channels or improved A/V quality with higher bitrates almost immediately, or just perform auto/manual search if necessary. No need to change new receiver if all channels continues to use H.264 video codec.
- Every centralised antenna systems (MATV) used in buildings like apartments/condos must carry out upgrading/reconfiguring works to be able to receive signals from more muxes. Proper planning and preparation is needed.
- Using more mux means more transmission equipment + more electricity to be used in transmitter sites, which could increases operating expenditure (costs)?

Broadcast all SD and HD channels using HEVC video codec
- Just like being implemented in some European countries.
- The STB/receiver/IDTVs used by every viewers must support HEVC, or they'll have to buy new device to continue watching DTT, and this could especially impact viewers from low income families.
- Could offer much better picture quality and/or increase number of channels by using lesser number of muxes (compared to H.264).

Menurut kenyatan itu, DidikTV KPM boleh ditonton menerusi saluran 107 di MYTV, saluran 147 di Astro dan saluran NTV7 di TV Unifi.

Bagi set TV Digital Bersepadu (iDTV) yang menggunakan antena pula, carian saluran DidikTV KPM boleh dilakukan menerusi penalaan automatik.

No no... Don't get confused by that statement of telling you to rescan channels whatsoever. I think that is to let the public know how to get NTV7 channel via DTT in general only.

I notice that the UI on the Google Meet seems to be very big, so I guess they use a computer with a display resolution of 1024x768 (or worse, 800x600). Bad decision indeed.
There are many 16:9 aspect ratio display resolutions can be used, such as 1280x720, 1366x768 or 1600x900. Just don't make stretch their faces like that laa aiyooo 

🤔

DYM the downgrade is the bitrate?