-The \fBtset\fR utility has been provided for backward-compatibility with BSD
-environments (under most modern UNIXes, \fB/etc/inittab\fR and \fIgetty\fR(1)
-can set \fBTERM\fR appropriately for each dial-up line; this obviates what was
-\fBtset\fR's most important use). This implementation behaves like 4.4BSD
-tset, with a few exceptions specified here.
-.PP
-The \fB\-S\fR option of BSD tset no longer works; it prints an error message to stderr
-and dies. The \fB\-s\fR option only sets \fBTERM\fR, not \fBTERMCAP\fP. Both these
-changes are because the \fBTERMCAP\fR variable is no longer supported under
-terminfo-based \fBncurses\fR, which makes \fBtset \-S\fR useless (we made it die
-noisily rather than silently induce lossage).
-.PP
-There was an undocumented 4.4BSD feature that invoking tset via a link named
-`TSET` (or via any other name beginning with an upper-case letter) set the
-terminal to use upper-case only. This feature has been omitted.
-.PP
-The \fB\-A\fR, \fB\-E\fR, \fB\-h\fR, \fB\-u\fR and \fB\-v\fR
-options were deleted from the \fBtset\fR
+.PP
+Neither IEEE Std 1003.1/The Open Group Base Specifications Issue 7
+(POSIX.1-2008) nor
+X/Open Curses Issue 7 documents \fB@TSET@\fP or \fB@RESET@\fP.
+.PP
+The AT&T \fBtput\fP utility (AIX, HPUX, Solaris)
+incorporated the terminal-mode manipulation as well as termcap-based features
+such as resetting tabstops from \fBtset\fP in BSD (4.1c),
+presumably with the intention of making \fBtset\fP obsolete.
+However, each of those systems still provides \fBtset\fP.
+In fact, the commonly-used \fBreset\fP utility
+is always an alias for \fBtset\fP.
+.PP
+The \fB@TSET@\fP utility provides for backward-compatibility with BSD
+environments (under most modern UNIXes, \fB/etc/inittab\fP and \fBgetty\fP(1)
+can set \fBTERM\fP appropriately for each dial-up line; this obviates what was
+\fB@TSET@\fP's most important use).
+This implementation behaves like 4.4BSD
+\fBtset\fP, with a few exceptions specified here.
+.PP
+A few options are different
+because the \fBTERMCAP\fP variable
+is no longer supported under terminfo-based \fBncurses\fP:
+.bP
+The \fB\-S\fP option of BSD \fBtset\fP no longer works;
+it prints an error message to the standard error and dies.
+.bP
+The \fB\-s\fP option only sets \fBTERM\fP, not \fBTERMCAP\fP.
+.PP
+There was an undocumented 4.4BSD feature
+that invoking \fBtset\fP via a link named
+\*(``TSET\*('' (or via any other name beginning with an upper-case letter)
+set the terminal to use upper-case only.
+This feature has been omitted.
+.PP
+The \fB\-A\fP, \fB\-E\fP, \fB\-h\fP, \fB\-u\fP and \fB\-v\fP
+options were deleted from the \fB@TSET@\fP