>Tcl is one of the few homoiconic languages.

I've been diving back into Scheme and one thing I found out was that in Scheme, procedures don't normally have an "external representation." I.e., once a procedure has been defined, I don't think there's a way to get that definition back out.

Tcl is really interesting in this aspect since procedure definitions (names, argument lists and bodies) can be viewed using the "info" command.

With that in mind, I'd say it's actually more homoiconic than Scheme.