Another reasonable show is Ultimate Force. It is not 100% accurate but it is not bad. The first series was actually co-created by Chris Ryan (who appeared in the first episode).
It's not "100% accurate but it's not bad"?
Too right, it's less than 1% accurate and it's fecking laughable!
Anyone who thinks otherwise has no Earth-bound idea about miltary operations in general, never mind the sneaky stuff.
It's Grange Hill with guns.
Although Ryan was in the first few episodes, I find it very hard to believe he genuinely co-created such utter bolleaux. Maybe you mean he "Got paid loads of cash to put his name to it, thus giving it some faux-authenticity"?
The follow on to "SAS: Are you a Publicity-Seeking Egotist Enough?" was "Secrets of the SAS" IIRC, and both featured 'ereford 'ardman Eddie "I've got a tough Glaswegian accent" Stone, who no doubt has a dog called "Semtex" or something.