I was very impressed on the learned reponses on a previous lost siman (baking matzot after chazot).
Lets try 175 OH
If you open an additional new wine during the meal you are suppose to say the blessing hatov umativ. They were very happy during most of human history when they opened a cask of wine and it turned out to be good. This is brought in the gemara, mentioned by the rishonim, and brought by both the mechaber and the ramah. The mishneh brura also discusses it like it is something people do. It was confusing to me exactly on which wine one says which bracha and exactly why didn't they want to say it during the seder. I presume what is being discussed is wine during the meal after the second cup and by saying a special blessing you are adding a cup. White wine is considered inferior to red wine but white wine is good for your health so it doesn't matter if you say the wrong blessing on the wrong wine.
My question is that I have never heard anyone say this blessing during a meal. It does not appear in any siddur I have seen under hatov umativ and booklets on what blessing to say on bannanas also don't mention it. Is this blessing still being said?

Aryeh Shore

“why didn't they want to say it during the seder. I presume what is being discussed is wine during the meal after the second cup and by saying a special blessing you are adding a cup.”
I think that is the reason, though the ones that argue say that since you don’t make “Hagafen” it doesn’t look like it’s being Mosef, since if it would be another Mitzvah cup, you would make a Hagafen.

“My question is that I have never heard anyone say this blessing during a meal. It does not appear in any siddur I have seen under hatov umativ and booklets on what blessing to say on bannanas also don't mention it. Is this blessing still being said?”

There are 2 (in my opinion) reasons why practically people stop saying it. (Besides that, at least in my circles, it’s not common to serve many types of wine at the meal.Even in Halacha we find that we're not Koveah to drink wine, so we don't take for granted that you automaticly meant to drink another cup that your 1st Bracha Poters the other cup.) In M.B. #15 reads that not only do you need 2 people drinking from both wines, but they need to have an equal partnership, or at least the host needs to put it out that everyone can drink as much as they want, and not just a limited amount to each guest. This may not be so common. The 2nd reason is SA #3 that you always make a Bracha on the best wine and Poter the inferior wine, since you always make first on what is more special (Choviv.) The opportunity is lessened that you’re not supposed to leave over the better wine to make Hatov Umativ. I use to eat on Shabbos by one of my Rebbeim (that is concidered one of the greatest Poskim in America.) What he used to do was make Kiddush on red wine, since in Simin 273 says that it’s preferable. Then, in middle of the meal, we drank white wine (which he said that we all had permission to take as much as we want) and made Hatov Umativ on it (like the din of the Rama.) In my house, the Bracha doesn’t come up very often, since I’m allergic to wine, we don’t have much more than grape juice 