No thats an anole, green lizard common to the area. They love the dish, maybe because its white. I won't admit to washing mine, lol, it sure needs it, but yes I have noticed some of the old paint rubbing off. Don't worry-you can't wash off anything that'll hurt the reflectivity, that part is imbedded in the composite material that it's made from. You can wash it and paint it, I use that spray paint made for plastic lawn furniture, works great.
For a beginner I would recommend a standard definition receiver that's tried and true like the Fortec Mercury II, it has been renamed a couple of times and I forget the latest handle they gave it. (insides are the same as the original-named receiver). Check out sponsors sites at the top of the page. Another recommended brand is Coolsat, they have since shut down but receivers can be found on ebay, the Coolsat 5000 is highly commented on here on the forum. Both those rec have easy controls, good blind-scanning which you will want, and sensitive tuners. Some of us have several models because there are more and more signals now that are high-def, these simpler boxes will not display those signals. The HD boxes are more expensive, some of the first ones didn't have blind-scan so you had to manually enter some information to find a signal. Remember that a lot of free to air involved searching for temporary signals, like sports events, newsfeeds, etc, and so far there aren't that many full-time high-definition signals (PBS has some). You can use the search feature to read other threads, check out the Reviews section for info on some of the equip we have tested or used.
*If you find something that interests you--post a question on it, somebody will have an answer for you! Before you spend the money, that is, lol.