[McMurdo]

when ITV came along in the 50's, band 3 'add on' converters became available and people drilled great holes in the sides and backs of walnut veneered TVs without much thought, I'm sure.
As electronics from the 70's and 80's became mass produced in the far east in quantities to satisfy the world market, so the collectors-item value of the stuff went down.
So I wouldn't worry, and just do it. But if a job's worth doing, it's worth doing well. You'll be respected if a collector buys your tv in the future!