este el xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE PARRILLA SYSTEM "PARRILLA.DTD">
<PARRILLA>
<NOMBRE> </NOMBRE>
<ANUNCIO>
<CANAL> </CANAL>
</ANUNCIO>
<DIAS>
<FECHA></FECHA>
<HOLIDAY></HOLIDAY>
<SPOT>
<HORA></HORA>
<TITULO></TITULO>
<DESCRIPCION> </DESCRIPCION>
</SPOT>
</DIAS>

</PARRILLA>
dtd
<!ELEMENT PARRILLA (canal+) >
<!ATTLIST PARRILLA NOMBRE CDATA #REQUIRED >
<!ELEMENT canal (anuncio) >
<!ATTLIST CANAL CHAN CDATA #REQUIRED >
<!ELEMENT anuncio (DIAS)>
<!ATTLIST anuncio nombre CDATA #REQUIRED >
<!ELEMENT DIAS (FECHA,(HOLIDAY,SPOT+))>
<!ELEMENT FECHA (#PCDATA) >
<!ELEMENT HOLIDAY (#PCDATA) >
<!ATTLIST DIAS FECHA CDATA #REQUIRED>
<!ATTLIST DIAS HOLIDAY CDATA #REQUIRED >
<!ATTLIST DIAS SPOT CDATA #REQUIRED>
<!ELEMENT SPOT (HORA,TITULO,DESCRIPCION?) >
<!ATTLIST SPOT HORA CDATA #REQUIRED >
<!ATTLIST SPOT TITULO CDATA #REQUIRED>
<!ATTLIST SPOT DESCRIPCION CDATA #REQUIRED >
<!ATTLIST SPOT VTR CDATA #IMPLIED >
<!ELEMENT HORA (#PCDATA)>
<!ELEMENT TITULO (#PCDATA)>
<!ATTLIST TITULO RATING CDATA #IMPLIED>
<!ATTLIST TITULO LRNGUAJE CDATA #IMPLIED >
<!ELEMENT DESCRIPCION (#PCDATA) >

errores que me da
SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Attribute "NOMBRE" is required and must be specified for element type "PARRILLA".
Start location: 3:2
End location: 3:10

SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Element type "NOMBRE" must be declared.
Start location: 4:6
End location: 4:12

SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Unexpected element "NOMBRE". The content of the parent element type must match "(canal)+".
Start location: 4:6
End location: 4:12

SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Element type "ANUNCIO" must be declared.
Start location: 5:5
End location: 5:12

SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Element type "CANAL" must be declared.
Start location: 6:9
End location: 6:14

SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Attribute "CHAN" is required and must be specified for element type "CANAL".
Start location: 6:9
End location: 6:14

SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Attribute "FECHA" is required and must be specified for element type "DIAS".
Start location: 8:7
End location: 8:11

SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Attribute "HOLIDAY" is required and must be specified for element type "DIAS".
Start location: 8:7
End location: 8:11

SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Attribute "SPOT" is required and must be specified for element type "DIAS".
Start location: 8:7
End location: 8:11

SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Attribute "HORA" is required and must be specified for element type "SPOT".
Start location: 11:7
End location: 11:11

SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Attribute "TITULO" is required and must be specified for element type "SPOT".
Start location: 11:7
End location: 11:11

SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Attribute "DESCRIPCION" is required and must be specified for element type "SPOT".
Start location: 11:7
End location: 11:11

SystemID: F:_LenguajesMarcas\2evaluacion\PARRILLA.xml
Engine name: Xerces
Severity: error
Description: Unexpected character data "
/SPOT>". The content of the parent element type is element only.
Start location: 15:13