If you need to convert HDMI video signal into normal CVBS signal(standard-definition 480i,576i), the following products can meet your requirements.
Using the first one product can play on TV, VCR, DVD recorders,etc and support NTSC and PAL of two TV formats. Price after code is: $15.99
https://www.amazon.com.au/Tendak-Composite-Converter-Adapter…
For the second product, it's an updated version that not only support
NTSC and PAL these two TV formats, it can also support NTSC_M, NTSC_J, NTSC_443;PAL_M, PAL_B, PAL_D, PAL_G, PAL_H, PAL_I, PAL_N, PAL_Nc. Price after code is: $16.49
https://www.amazon.com.au/Tendak-Converter-Composite-Convert…
Spamazon. $6.99 delivered and plenty more options. Though I must say, I own one of these and it did the job just perfectly.
https://www.ebay.com.au/itm/HDMI-to-AV-CVBS-3RCA-Composite-A…