Good day
You have 3 interconnection options:
USB, Optical and AUX
The Astro A50 already offers the function of using all 3 inputs simultaneously with the charging station.
You have 2 options:
1. as it is intended by Astro:
Connect your PS4 normally with the USB and Optical cable.
Then connect your TV and the charging station with an AUX cable. You have to buy the AUX cable separately.
2. the way I do it:
I only connected my charging station to my PS4 via USB. This way I can use the headset normally on the PS4.
I then connected my TV to the charging station with the optical cable.
This way I can use all devices without having to reconnect them.