What does 有模有样 mean? Is 模 in this phrase mo2 or mu2? Literally, have mold/model, have appearance/shape. Does it mean something like takes shape?

Context:

Fire TV, which arrives after years of explicit rumors and intense speculation, costs $99. 

数年来，关于Fire TV，坊间一直存在着各种*有模有样*的传言和激烈的揣测，如今它终于以99美元（约合620元人民币）的价格面市。

Or here:

最萌对眼猫咪穿哈利·波特制服 有模有样 图

http://edu.people.com.cn/n/2014/0316/c1053-24647134.html
模 is mu2 (some people pronounce it as mo2, but that's incorrect in this instance)

模样 is a common word in Chinese means appearance, especially referring to one's look.

有模有样 means has the look.

In the first context, 有模有样 means vivid and seems-to-be-true. 

In the second context,  it means the cat has the look of Harry Porter by waring the Uniform.

Another 成语 with 模样 is
人模狗样.
It means something looks good from outside, but indeed is bad from inside.