Lots of options really depends on how far you want to go. Currently I have the following options
HTPC running free view and ( when I finally get it all configured) freesat through win7 media centre with 12tb of storage 😆
Samsung C7000 tv which is networked so has the Samsung apps so iplayer, love film, YouTube etc. and records to an external HD plugged into it
Samsung blu- ray player which has the apps as well plus the option of cat5 or wifi connection £200
Wii which will do iplayer ( but as mentioned above quality not great) £ 150
iPad one of which will mirror (or I can just use my pico projector onto the wall) £lots
Overall best solution is still the HTPC can record, gets over the air and sat tv play any video file you throw at it, web with flash etc for midweek movies on here Mine even looks like a bit of proper av kit with a silverstone mc16 case but that was nearly £200 on it’s own, the silent fans and other quiet components along with all the drives (upgraded those this year) bring the price up to about a grand but it’s a proper bit of kit!
Oh and if you go that route definite +1 on the key sonic wireless keyboard, had mine for years and works a treat only need to replace the 2AA batteries every 6 months or so, one of the best £25 I’ve spent it looks like the bottom half of a laptop with compact keyboard and trackpad really excellent bit of kit.