A diplexer can be purchased online from Amazon or from eBay. It is often used with televisions and so can also be found in that section of electronics stores.
The short answer is yes and no. Yes you can if you are not passing HD satellite. All you need is 2 "diplexer(s)" (looks like a splitter, but isn't). at one end connect the satellite and cable. run the line to your tv, and split back to your satellite and cable. The Diplexer is labelled "tv" and "satellite".
A diplexer is a box that combines both signal usually mounted on the aerial mast . At the tv set another box separates the two signals,one to tv the other to sat digibox
One can purchase L'Avventura from 'Amazon'. It is a documentary and can be purchase for $19.99. One can also purchase this documentary film from 'eBay'.
One can purchase a VGA extender online or in stores. For online, one can purchase them at Amazon or eBay. For in stores, one can purchase them at Best Buy.
One can purchase a toddler snowsuit in stores wherever one can purchase outdoor things. One can also purchase this clothing online from Amazon or eBay.
One can purchase many wardrobe accessories at a Kohl's store. One may purchase jewelry such as earrings, bracelets, and armbands, one may purchase watches, and one may purchase sunglasses.
One can purchase the Titanic film online or in stores. For online, one can purchase them on Amazon or eBay. For in stores, one can purchase it at Best Buy or Future Shop.
There are many places one can purchase The Nutty Professor on DVD. One can purchase it from ebay, Amazon either as a download or a physical copy and one can purchase from HMV.
One could purchase crates from Laminations. They have a website that one can purchase from and one of the items that they sell are crates that are made for shipping.
One can purchase cheap reading glasses online and in stores. For online, one can purchase them at Amazon or eBay. For in stores, one can purchase them at Shopper Drugs Mart and Walmart.
One can purchase an EDVO router. There are many places that one could buy an EVDO router from. One place that one could purchase one from is Amazon. Another place that one could purchase an router from is Best Buy.
There are a number of places where one can purchase a Sony Discman. One can purchase one from the Sony website itself, or from websites such as eBay and Amazon.