Here's an analysis of your input:

1. The text appears to be a list or passage discussing various famous TV dog trainers.

However, upon closer inspection, it seems that the actual topic is not 'TV dog trainers' at all but rather notable fictional dogs from popular television shows and cartoons. These canine characters include:

- Clifford (from 'Clifford the Big Red Dog')

- Brian Griffin ('Family Guy')

There are also mentions of other famous TV dogs mentioned in passing, such as Astro from 'The Jetson's'.

Some key points to note about these dog characters based on your input text are:

1. They all belong to different families or groups.

2. Each character has a distinct personality and behavior profile.

For example:

- Clifford is portrayed as intelligent but sometimes does stupid things.

- Brian Griffin, like his real-life counterparts in some respects, walks and talks like humans while also displaying dog-like traits occasionally.

It's worth noting that there are several other famous TV dogs not mentioned here.

Famous tv dog trainers