To connect HDMI-quality devices to a TV, one must normally have a separate HDMI port on the TV for each device.
The way around it is to use a HDMI Switch.
There's a number of other unrelated devices on that webpage, look at the descriptions for which of them are used as a HDMI Switch.
The least expensive is a manual switch listed there for R199, but it's sold out... so you can look elsewhere or put it on back-order.
Better switches that have remote control switching cost over R400 and upwards.
This company is in Centurion, Pretoria and Boksburg, Johannesburg (which won't help you in the Eastern Cape but may assist others reading the forum), they also do courier deliveries - most regulars here recommend them. There are a number of other online services who will also deliver.