The TI-99/4A was released in the US with the TMS9918A Video display processor.
It created a 60Hz signal, 240p, therefore 60 different frames per second.
The chip produces internally a composite signal and outputs that on a IC pin.
The video signal was output as composite on a DIN port with 5 pins, the norm for it is DIN 41524.
One of the 5 pins is used for the video signal.

For the European market the TMS9929A Video display processor was used.
That one generates a 50Hz signal, 288p, therefore 50 different frames per second.
The chip produces no composite signal, instead it produces Luma on one IC pin, and 2 color difference signals on two additional IC pins.
The video signal was output as Y, R-Y, B-Y on a DIN port with 6 pins, the norm for it is DIN 45322.
Three of the 6 pins are used for the video signals.

Disclaimer: one pin on that DIN port is outputting 12V to power the obsolete video modulator. A wrong cable might damage your connected display device!