I’ve never been, but my sister has been. So has one of my cousins. I don’t have a lot to offer. Just think carefully about what you bring. (I think that you can bring two items, but don’t take that as Gospel.) Either bring an item that you really want to know more about (whether it’s worth much or not), or consider carefully (and maybe do a little research) about possible items to bring. Old plates and old glassware aren’t typically worth much. Old Rolex watches can be worth a lot.
One thing that I’ve learned from watching Roadshow: Hideously ugly paintings are worth a lot more than beautiful ones. I’ve often wondered if these crazy things are used for money laundering or something.
Best wishes to you!
I am always surprised by the artwork also. And they are often the “ka-ching” item.