10 - 7 = 3 3 mbps faster.
7mbps
is 7 times as fast.
About 7.5Mbps
Qwest DSL can reach 7 Mb depending on where you live in relation to the providing office, or the remote terminal that feeds your neighborhood. Data hates distance, so the closer you get, the better your chances of getting faster speeds. In some areas served by Qwest, speeds are well exceeding 7 Mb.
Your question doesn't make any sense. "1000mbps" refers to a bitrate, rather than a size. Also, there are no movies encoded at 1000mbps. That would be 125 MB for every second of audio and video. 1080p HD video is encoded between 18 and 32 mbps, for comparison. If you meant a "1000 MB" movie, on a 7mbps internet connection, that can be answered. 7 mbps / 8 = 0.875 MB/sec. 1000 MB / 0.875 MB/sec = ~1143 seconds 1143 s / 60 s/min = ~19 minutes. That's if you downloaded at your maximum bandwidth the entire time, which you probably wouldn't. If you normally get 300 or 400 KB/sec, then closer to 40 or 50 minutes.
Standard OTA (Over the air) television channels are able to use about 19.3Mbps. If it's a channel that has several sub-channels for example 38.1 or 38.2 then they have to divide the 19.3Mbps up between the sub-channels. Generally speaking channels that are standard definition use anywhere from 4Mbps-7Mbps. High definition channels generally use anywhere from 10-15Mbps. When dealing with content that is on cable/Satellite though things change because different content providers compress each network different amounts.