Looking for Advice on an RCA Set

[Console User]

I, just yesterday, scored yet another RCA Console Set. This is the Model G27647. It has the Chassis CTC203AX. It was called the Entertainment Series and had on it the GuidePlus+ Gemstar feature back in the day. I did not know this set had such a feature. However, when going through the Menu and I selected Time. I ran onto the feature called the Warranty Time Check. This Set was Manufactured in May of 1999. It has 34,481 on the CRT. I was wondering if that would be considered High Hours or not considering it's age. Also, wondering if anyone had any insight as to how many hours the CRT on this particular set will or would go before eventually failing? Also, does this set still have the problematic soldering connections such as cracked solderings, etc. on the tuner board? I notice a little pronounced red color on the backscreen on this particular set. It to me still has good coloring and B&W shows still look a true Black and White with not green or blue or red tint to them. It has a lot of different options to set your Picture Quality settings to. For example can choose Bright, Normal, or Soft lighting. Also, Color warmth of Cool, Normal, or Warm. Anyone have a preference on which settings would give one the best picture on this set? My other two RCA Console Sets of this same style were not from the Entertainment Series as one of the other sets is a 1997 and the other one is a 1998 I believe.