Now we no longer get CW (which was a channel my wife liked). The tech did say that we could buy/install our own larger dish to try and pick up St Louis locals in HD, and all that would require.
Your tech is being a little facetious. A bigger dish wouldn't do it, and even if it did, Dish couldn't turn you on in the St. Louis DMA because of the FCC rules. You'd have to 'move' to somewhere in the St. Louis DMA.