In the Thundercats franchise, the Title: Lord of the Thundercats, has always been a title with great weight and significance. But for the longest time now, it felt like they had two somewhat different meanings in the two Thundercats shows. In the Original Show, it never really felt like it was anything more than, say, a military rank, at least to me. The way they used the title in the episodes i used to watch, you'd think that it was just a name that they gave to whomever became leader of the TCats. And Cat's Lair was basically just the stereotypical superhero base, not a home suitable for anyone of nobility. It wasn't until i started reading the comics that learned how "Royal" the title really was. In the New Series however, it was made perfectly clear right off the bat that being the Lord of the Thundercats meant being the King of the Thundercats, complete with control over an army, royal servants and everything. And Cat's Lair was quite literally a palace fit for a King.