The 'Timed Sequences' feature is unique to the 'Producer 8' class of remotes, so it will not be found on the 15-1994 or the Cinema 7.
Seeing as this old thread has been brought back to life, I feel i should clarify some points. I think the 15-1994 is much closer to the Cinema 7 than the Cinema 6. Although it is advertized as only being a 6 device remote, it is in fact a seven device remote, except that the 7th device is hard-wired to only be a 'Plug & Power' device button. My guess is that this is because Radio Shack sells X10 stuff and think that by doing this you are more likely to go out and buy some of their X10 stuff.
The 15-1994 is slightly older than the Cinema 7, so it does have the poor volume punch through, which was fixed by the time the C7 came out. It also has a different set of device codes. Radio Shack requires thattheir remotes include a whole bunch of Realistic & Optimus device codes (for stuff that no one uses!), so some useful device codes had to be dropped to make room for them (liek all the cassette codes, the Kenwood VR-309 codes and some RCA receiver codes, to name just a few). I have a cross-refernce of which device codes are on the 15-1994, URC-7800 and URC-9800 remotes on my site.
Rob.
http://www.hifi-remote.com/