Interesting. I have a 1978 Team Champion (Columbus SL) and the Venn overlaps are these:
Bocama lugs with cutouts.
Color (Brilliant Blue).
Huret dropouts (mine lack the eyelets).
Fork crown/reinforcements/chrome appears identical.
Top tube cable guides are identical.

Among the differences I see:
Stay caps are flat on this bike; mine are concave.
Stay ends at the dropout are rounded; mine are fish-mouth.
This bike has cable guides on the BB; mine uses a clamp-on guide (although the 78 catalog indicates they should be brazed on).

So I would say it's clearly not a TC, but whatever it is, it's quite nice. The fender eyelets are a bonus in my opinion.