Some iTunes receipts in the UK and Canada are showing movies listed as 4K and HDR, hinting at Apple adding those viewing options in the near future, MacRumors reports. Apple currently only offers movies in SD and HD, which tops out at a maximum 1080p, and even users who are seeing 4K and HDR options on their bills say the movies are still only available for download in HD. The change also hasn’t appeared in the US yet. The current Apple TV can…