Based on your question, it seems you need just the satellite dish for DSTV reception. An DSTV Smart LNB (also called a low-noise block downconverter) is the component that connects directly to the satellite dish. The DSTV Smart LNB LMX501i and DSTV Smart LNB LMX502i are both excellent options, priced at around R599 each according to the PriceCheck search results. The Smart LNB receives signals from the satellite dish and converts them into a format that can be passed to your DSTV decoder via coaxial cable. It provides crisp HD picture quality. I'd recommend the Smart LNB as the component you need to get your DSTV set up working with just a satellite dish. Please let me know if you have any other questions!
Based on the search results, the best options for a DSTV dish are: The DSTV Smart LNB LMX501i and DSTV Smart LNB LMX502I, which are available for around R499-R599. These connect directly to the dish and allow you to receive DSTV signals. You'll also need a DSTV decoder, such as the DSTV Explora or DSTV HD Decoder, available from R699-R999 installed. Both the Smart LNB and decoder are needed to access DSTV. You can purchase these online from trusted retailers. Please let me know if you need any other details!