Switching on your Sky TV box today — you’ll find six brand-new channels waiting for you. Sky has treated viewers with its Sky Glass TVs or Sky Stream boxes to the new additions at no extra cost. The new channels will be dedicated to much-loved shows that have previously aired on Sky, perfect if you fancy revisiting an old favourite or are relatively new to the satellite broadcaster and want to see what you’ve missed. Unfortunately, if you’re still watching on Sky Q or Sky+, which is set to lose access to all Sky TV channels next month, then you won’t be able to watch any of the new additions t…