[Ethan here is really glad he didn't use the name Gold the moment Ken mentioned his brother's name. Although he didn't recognize that region name but... alternate worlds and all that.]

Wow a Champ and a hero all in one huh? That's very cool!

[That would be a prime opportunity for Ethan to tell Ken about his own accomplishments but he doesn't. That was too personal for him.]

Yeah it's fun getting to learn about Pokemon through the radio! It's a bit like listen to Professor Oak's talk show. Yeah! I'm a trainer!

[When Ken excitedly asks about his own brother Ethan laughed.]

Dunno what you're like exactly but--he's an indoors guy. He likes reading a lot! Oh, and we do call each other! He always wants to know about what kind of Pokemon I've seen or caught.

[At least that little bit wasn't a lie. Not that Ken would know he's casually threw in or omitted things here and there.]

A Pokemon Magazine huh? Is it in a language I can read or the funny looking one from this region? It sounds like fun!