The “cinematic” look – how would you define that? The history of cinema – and current practice – shows us that there are many different “looks” that are achievable, and that have been desired and admired on different projects. The “deep focus” of Citizen Kane? The shallow depth of field and medium-telephoto portraiture of romances and many comedies, or the grittiness of Mean Streets? The ultra-polished effects of, say, Inception, or the off-the-streets realism of the french new wave, of the Dogma group?
So, what style does your project suit? What do you (your cinematographer) want for it, in terms of look?
TV historically and still typically uses interlaced frames .. effectively doubling the frame rate and allowing for faster in-frame movement before picture tearing. If you want to use progressive-scan then you need to think like a film cameraman and pan, tilt and track slower, keep the speed of motion of objects across the frame slower than you could do with interlaced footage.
If your outlet is TV then why not shoot 25p, if you must have the progressive scan element? The big plus for progressive scan is on output to film – really not likely to happen on most projects ever, and even less so now as digital cinema projection spreads everywhere.