Originally Posted by saturns rings:
“It's been used way too much since the programme came back
Wasn't that the reason it was destroyed in The Visitation, because it was such an easy cop out for writers?”
Argh.
Sorry, but this argument really annoys me. You are talking about a show which has 45 (well, 42) minutes to tell a complete story rather than a multi-part serial and modern audiences demand FAR more than they used to. In that circumstance the screwdriver is invaluable to the writer as a shortcut to save valuable minutes of exposition which would not only slow the story down but take time from other areas. Better still the screwdriver needs no expensive special effects, it's a bulb and a sound effect, so you don't need to spend precious money on a gizmo or effect that'll only be seen once and for a second or two at best.
Now is this a problem? Only if said shortcut is used incorrectly, the most obvious case being to defeat the big bad all on its own. As a quick example, if the Doctor had pulled out the screwdriver rather than the TARDIS power cell during the first Cybermen two-parter of the second season that would have not only been a cheat but stupid. If that had been the solution and it's established the screwdriver is more-or-less immune to running out of power he could defeat every Cyberman with ease, ergo it'd be a stupid use of that particular plot device. So let's take a look at the most recent two-parter shall we?
# To increase a signal strength. (DW: The Time of Angels)
# To scan Father Octavian's Computer. (DW: The Time of Angels)
# To open a mechanical door (unsuccessful when combating the Weeping Angels). (DW: The Time of Angels)
# Opening the entrance hatch of a space ship. (DW: Flesh and Stone)
# Isolating the lighting so that the Weeping Angels could not drain the power. (DW: Flesh and Stone)
# Redirecting all the power to the doors in order to open them. (DW: Flesh and Stone)
# Determining the nature of the cracks throughout time and space. (DW: Flesh and Stone)
# To send a signal through to Amy's communicator to help guide her to the right spot in the forest in order to teleport her. (DW: Flesh and Stone)
# Uploading software, specifically a proximity detector to Amy's communicator. (DW: Flesh and Stone)
Right... out of that lot the only MAJOR plot point that the screwdriver was used for is the nature of the crack and that was more getting valuable info to the viewer in the quickest way possible. ALL of the other instances could have been replaced with a switch, device or other solution and not affected the narrative one iota (actually, they could have used River's tablet computer thing to scan the crack too if they'd wanted). All it would have done is taken five minutes of time to setup and explain that would have meant we lost something else from the episode.
And THAT'S the point, the screwdriver only becomes a bad thing if it affects the narrative. Using it instead of a hoard of little gimcracks that come out of nowhere and vanish immediately is actually beneficial to the story and that's exactly how it's currently being used. While it's fun to see the Doctor McGuyver his way out of trouble it's neither practical or interesting to see him do so ALL the time so for those moments where you just need to move the plot along the screwdriver works far far better AND is more interesting visually to boot.